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why is hydrogen in group 17

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why is hydrogen in group 17

Let us take a look at the similarities. Hydrogen is the chemical element with the symbol H and atomic number 1. Hydrogen can be placed in group 1[1A] as it forms a positive ion as in HC1 like alkali metals H. Question 2. Hydrogen only needs 2 (or 0) electrons to be stable. Get the answers you need, now! Want a call from us give your mobile number below, For any content/service related issues please contact on this number. Give a reason why hydrogen can be placed in group 1 [1A] and group 17 [VIIA] of the periodic table. That is why position of hydrogen is still undecided. Hydrogen is an oddball, thats why is has its own space next to helium. Hydrogen can be placed in both group 1 and group 17 because its electronic configuration is similar to both the groups. Why is hydrogen placed in group 1 IA and group 17 VIIA ? Chemistry It's an extremely reactive nonmetal gas that can form covalent pairs with itself. Ltd. All rights reserved. Hydrogen is a chemical element with atomic number 1 which means there are 1 protons and 1 electrons in the atomic structure.The chemical symbol for Hydrogen is H. With a standard atomic weight of circa 1.008, hydrogen is the lightest element on the periodic table. Thus it can lose an electron to achieve a stable configuration like alkali metals and hence can be placed in group 1 … 1) In some properties it resembles alkali metals.As such, it can be placed in group 1 of the periodic table along with alkali metals. The byproduct of a hydrogen and oxygen explosion is water or H 2 O. Hydrogen gas is made up of diatomic molecules designated as H 2. Hydrogen - Hydrogen - Reactivity of hydrogen: One molecule of hydrogen dissociates into two atoms (H2 → 2H) when an energy equal to or greater than the dissociation energy (i.e., the amount of energy required to break the bond that holds together the atoms in the molecule) is supplied. IT IS JUST PLACED ABOVE group 1 of th table as it has valency one and cannot be placed with halogens as it has just one valence electron. Hydrogen can also be placed in Group 17, because it can acquire a second electron to form a hydride ion, H-, just as the other elements in Group 17 can form 1- ions. In hydrides, hydrogen is bonded with a highly electronegative atom so their properties are more distinguished. Similar to group 17, it will attract one electron to complete its shell. Let us talk about hydrogen, a very interesting element, with an instructive video! Hydrogen can be placed in both group 1 and group 17 because its electronic configuration is similar to both the groups. It burns when it comes into contact with oxygen. Although astatine is radioactive and only has short-lived isotopes, it behaves similar to iodine and is often included in the halogen group. Indeed, some versions of the periodic table place hydrogen above fluorine in Group 17 because the addition of a single electron to a hydrogen atom completes its valence shell. Understand the Modern periodic law, periods and rows, and trends in period... Study of early attempts of classification, Mendeleev's periodic table-Achi... Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day. Hydrogen can be placed in both group 1 and group 17 because its electronic configuration is similar to both the groups. The alkali metals also react readily with water to produce hydrogen gas and metal hydroxides in the following video: Alkali Metals: Explosive reactions. ... Give the general group characteristic applied to hydrogen with respect to similarity in properties of hydrogen with halogens of group 17 [VIIA]. The properties of hydrogen are different from the other members of its group i.e. Li , K , Na , K, Rb ,Cs and Fr of group 1 of the periodic table. Like group I elements, hydrogen has only one electron in its valence shell. Group 1A elements such as H, Li, K,etc. ; Group 17 elements can combine with nearly all the elements in the periodic table. Like group I elements, hydrogen has only one electron in its valence shell. Ask your question. Because hydrogen is so light, the pure element isn't commonly found on the Earth. Hydrogen is a chemical element with atomic number 1 which means there are 1 protons and 1 electrons in the atomic structure.The chemical symbol for Hydrogen is H. With a standard atomic weight of circa 1.008, hydrogen is the lightest element on the periodic table. Why is hydrogen in group 1 on the periodic table instead of a halogen in group 17? Let’s now look at the electronic configurationof these elements. Hydrogen is a very reactive gas, and the alkali metals are even more reactive. (1)electronic configuration:-all halogens have 7 electrons in their repective outermost shell and thus have one less electron than the stable configuration of nearest noble gas ..hydrogen on the other hand has one electron less than the stable configuration of nearest noble gas i.e. please remember ther is some space between the group 1A and Hydrogen. between group 14,15, and 16 there is a patern between the boiling points with the boiling point being higher for the higher group- but group 17 dosn't fit the pattern it has lower boiling point then group 15 - why? Because hydrogen forms compounds with oxidation numbers of both +1 and -1, many periodic tables include this element in both Group IA (with Li, Na, K, Rb, Cs, and Fr) and Group VIIA (with F, Cl, Br, I, and At). Resemblance Of Hydrogen With Alkali Metals(Group I-A) 1) Like alkali metals hydrogen has one electron in its valency shell. The group I elements react rapidly with oxygen to produce metal oxides. Join now. It can form ions -1 (also like group 17), but also +1 (like group 1). He positioned hydrogen in the first column above alkali metals. (4)oxidation state :- just like halogens hydrogen shows an oxidation state of -1.. for example -- NaH like NaCl (both hydrogen and chlorine are in -1 oxidation state), CaH2 like CaCl2 (both hydrogen and chlorine are in -1 oxidation state). Helium .. Such that in the chart below comparing boiling points of groups 14-17 hydrides, the values of ammonia (NH 3), water (H 2 O), and hydrogen fluoride (HF) break the increasing boiling point trend. Hence, it can also be placed above the halogen group. Explanation : H (Z=1): K 1. 1. This is one of the factors that dictates the position of hydrogen in the table. It is estimated that 90% of the visible universe is composed of hydrogen. A conceptual question: In Chemistry, Hydrogen has always been regarded as an "outlier" of sorts--exhibiting the characteristics of family 1 elements yet only have one valence electron filling the 1s orbital. Add your answer and earn points. Similarly, it can gain one electron to achieve stability.Like Group 17 elements,it can gain electron. (Therefor classed in group 1) In fact, they are the most reactive metals and, along with the elements in … Therefore, instead keeping Hydrogen in group of halogens it should be in group 1st that is alkali metals group. Hydrogen fits in its current position on the periodic table (group 1) much better than in group 17 (not a perfect fit, though). But it is not a halogen either. Hydrogen was first recognized as a distinct element by Henry Cavendish in 1766. So its possible that hydrogen can … 3) In some hydrogen differs from both alkali metals and halogens. Like halogens, hydrogen is a gas, and exists as a diatomic molecule (H2). resempblence with halogens(Group -17 or Group VII)--- (1)electronic configuration:-all halogens have 7 electrons in their repective outermost shell and thus have one less electron than the stable configuration of nearest noble gas ..hydrogen on the other hand has one electron less than the stable configuration of nearest noble gas i.e. As the radius of the atom increases down group 17 from top to bottom, and the valence shell electrons are increasingly shielded, the positively charged nucleus exerts less of an attractive force on the electrons so it has less ability to attract electrons towards itself, hence, electronegativity decreases down the group from top to bottom. 1. For example, it forms stable/meta-stable peroxides/superoxides, like alkali metals, particularly potassium and beyond. they exist naturally in various mineral salts in […] The group number determines how many electrons are on the outer shell of the atom. He did so because hydrogen and alkali metals have similar properties. Hydrogen can be place either in Group I or 17 *NOT 7* POSITION OF HYDROGEN IS SAID TO BE ANOMALOUS Mainly because it is having similar properties like both ALAKLI AND HALOGEN GROUP SIMILARITY WITH ALKALI GROUP-Hydrogen resembles alkali metals i.e. have 1 valency. Physical and Chemical Properties of Group 17 Elements Group 17 Elements: The Halogens The elements in Group 17 are: Fluorine Chlorine Bromine Iodine Astatine These elements are known as halogens. THESE PROPERTIES LEAD TO THE UNEXPLAINED POSITION OF HYDROGEN I asked my teacher if hydrogen is a metal and he gave me a straight no. Give a reason why hydrogen can be placed in group 1 [1A] and group 17 [VIIA] of the periodic table. There are many reasons for including hydrogen among the elements in Group IA. This means that they are less capable of donating an electron, and want to keep them because their electron orbital becomes fuller. The artificially created element 117, tennessine (Ts), may also be a halogen. - Bromine is … Afraid of a subject or a topic? The group 17 elements include fluorine(F), chlorine(Cl), bromine(Br), iodine(I) and astatine(At) from the top to the bottom. In the coming lines we will discuss why hydrogen can not be placed in a particular group in the periodic table. Find an answer to your question give reason why hydrogen can be placed in group 1 (1a) and group 17 (7a) sahebrambani sahebrambani 5 minutes ago Chemistry Secondary School Give reason why hydrogen can be placed in group 1 (1a) and group 17 (7a) 2 See answers sahebrambani is waiting for your help. With a standard atomic weight of 1.008, hydrogen is the lightest element in the periodic table.Hydrogen is the most abundant chemical substance in the universe, constituting roughly 75% of all baryonic mass. state 3 reasons why hydrogen can be placed in group 1 or group 17 - Chemistry - TopperLearning.com | 47lxjtll This is because, Hydrogen has only 1 valence electron in its outermost shell.Like the Group I Alkali metals it has valency = 1 i.e it can lose electron. Hydrogen is a nonmetal and is placed above group in the periodic table because it has ns 1 electron configuration like the alkali metals. They are called “halogens” because they give salts when they react with metals.So, now you know what halogens are! Middle School. 1) Electronic configuration : Like alkali metals, hydrogen also contains 1 electron in its outermost shell. Its monatomic form (H) is the most abundant chemical substance in the Universe, constituting roughly 75% of all baryonic mass. Includes trends in atomic and physical properties, the redox properties of the halogens and their ions, the acidity of the hydrogen halides, and the tests for the halide ions. The prime components of air, nitrogen and oxygen, are fourteen and sixteen times heavier, giving hydrogen dramatic buoyancy. HOPE THIS HELPS ! Because Hydrogen only has 1 electron, it has 1 electron on it's outer shell. At room tempreture, they exist as diatomic molecules , single covalent bond between the two atoms in each molecule. But it is not a metal. With a standard atomic weight of 1.008, hydrogen is the lightest element in the periodic table.Hydrogen is the most abundant chemical substance in the universe, constituting roughly 75% of all baryonic mass. Hydrogen resembles alkali metals i.e. Electronic Configuration: Like all the elements of the group, Hydrogen also has one electron in … Resemblance with alkali metals It is metallic when frozen (like group 1) It can form alloys with metals (like group 1) Hydrogen is a diatomic gas in it's elemental state, which is different from the other group one metals (and similar to the group … Similarly, it can gain one electron to achieve stability.Like Group 17 elements,it can gain electron. Like halogens, hydrogen is a gas, and exists as a diatomic molecule (H2). Can you please write me reasons? Explanation : H (Z=1): K 1. Helium .. (2)electronegative character:-halogens have a strong tendency to gain one electron to form halide ions ..in a similar way hydrogen shows some tendency to gain one electron to form hydride ion .. H + e- -----> H(-) (He gas configuration), Cl + e -----> Cl(-) (Ar gas configuration). They are called “halogens” because they give salts when they react with metals. no. Hydrogen's Placement in the Periodic Table. They are very soft metals, which become liquid just above room temperature. +1.. (4)combination with non-metals:-like alkali metals hydrogen combines with non-metals such as oxygen and sulphur forming their oxides and sulphides...for example-- H2O, like Na2O ,K2O. Like group I elements, hydrogen has only one electron in its valence shell. So its possible that hydrogen can … There has been considerable discussion as to the placement of Hydrogen. ... Give the general group characteristic applied to hydrogen with respect to similarity in properties of hydrogen with halogens of group 17 [VIIA]. 1].e Give a reason why hydrogen can be placed in group 1 [1A] and group 17 [VIIA] of the periodic table. Water is made up of hydrogen … The hydrides of nonmetals on the periodic table become more electronegative as you move from group 13 to 17. (a) Halogen is a Greek word which means salt-former’. Composed of a single proton and a single electron, hydrogen is the simplest and most abundant element in the universe. Answer:Hydrogen's atomic number is 1,hence there is only 1 electron in outermost shell. It forms covalent compounds like halogens unlike alkali metals. THESE PROPERTIES LEAD TO THE UNEXPLAINED POSITION OF HYDROGEN. Hydrogen 1s 1. A good periodic table shows hydrogen by itself. Hydrogen also resembles halogens in many ways. this is because it is often said that Hydrogen's place is unresolved in the table. Because Hydrogen behaves unlike most of the other groups, but has characteristics of Groups 1 and 17. Most periodic tables only feature one Hydrogen atom, on the top of the first group. Hydrogen is considered as a very unique element.The position of this small element in the periodic table is debatable. Lithium 1s 2 2s 1. VIEW SOLUTION. I did some research and found a few science magazine articles. elements in group I-A. All rights reserved. There are many reasons for including hydrogen among the elements in Group IA. VIEW SOLUTION. Group number indicates the number of valence electrons or outer electronic configuration. At standard temperature and pressure hydrogen is a colorless, odorless, and tasteless gas. It would just float away. This is one of the factors that dictates the position of hydrogen in the table. Hydrogen also resembles halogens in many ways. 5 points marinescastro2 Asked 04/01/2020. Like halogens, hydrogen is a gas, and exists as a diatomic molecule (H2). ! hi.. well hydrogen IS NOT in group 1 of the periodic table.. But some, like the one I was given, also show Hydrogen in the 7th group, to left of Helium. It is normally gaseous and diatomic (H2), like group 17. Hydrogen is the raw fuel that most stars 'burn' to produce energy. Thus it can lose an electron to achieve a stable configuration like alkali metals and hence can be placed in group 1 … In others, you might find hydrogen placed independently of any group; somewhere at the top of the Periodic Table. Covers the halogens in Group 17: fluorine (F), chlorine (Cl), bromine (Br) and iodine (I). Thus it can lose an electron to achieve a stable configuration like alkali metals and hence can be placed in group 1 … The lightning test was inconclusive due to the container being obliterated in each case. james harrington asked the Naked Scientists: Dear Dr. Chris, I'm a GCSE chemistry student (taking it through to AS and A level) and i've always been puzzled why hydrogen is in group 1 of the periodic table (with the alkali metals). (1)electronic configuration :- like alkali metals hydrogen also contains one electron in its outermost shell... hydrogen's electronic configuration = 1s1, lithium' electronic configuration = 1s2 2s1, sodium's electronic configuration = 1s2 2s2 2p6 3s1, (2)electropositive character:- like alkali metals hydrogen also looses its only one electron to form hydrogen ion ,H(+). So, now you know what halogens are! State the electronic configuration of hydrogen [at. These five toxic, non-metallic elements make up Group 17 of the periodic table and consist of: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). Electronic Configuration: Like all the elements of the group, Hydrogen also has one electron in … Clean Energy Group raises concerns about harmful NOx emissions from new industry plans to burn hydrogen in fossil fuel power plants; calls for pause in permitting proposals until independent public health investigations are conducted -- particularly to study potentially dangerous air pollution impacts in environmental justice communities. Hydrogen is the first element of the periodic table. Copyright Notice © 2020 Greycells18 Media Limited and its licensors. 2) Electropositive character: Like alkali metals ,hydrogen also loses its only electron to form hydrogen ion i.e. Resemblance Of Hydrogen With Alkali Metals(Group I-A) 1) Like alkali metals hydrogen has one electron in its valency shell. Li (Z=3): K 2, L 1 In the coming lines we will discuss why hydrogen can not be placed in a particular group in the periodic table. Group 17 elements are also known as: (a) halogens (2) (name still in common use) (b) Group VIIA (name no longer used) Group 17 elements are non-metals; Group 17 elements exist as diatomic molecules (X 2) when not combined with other elements. Join now. Group 17 Elements. With special reference to valency electrons & ion formation. It forms covalent compounds like halogens unlike alkali metals. Hydrogen also resembles halogens in many ways. The two hydrogens are the same, but some periodic tables show hydrogen in both places to emphasize that hydrogen isn't really a member of the first group or the seventh group. Log in. It forms covalent compounds like halogens unlike alkali metals. Answer: Electronic configuration of hydrogen is 1 i.e. With special reference to valency electrons & ion formation. So to be stable Hydrogen loses its electron and makes 1 positive charge. Resemblence of hydrogen with alkali metals (Group -1)----. (5)Like alkali metals hydrogen also act as a strong reducing agent .. resempblence with halogens(Group -17 or Group VII)---. That is why position of hydrogen is still undecided. document.write('This conversation is already closed by Expert'); Copyright © 2021 Applect Learning Systems Pvt. Hydrogen is a diatomic gaseous nonmetal, like most of the halogens. For example, hydrogen reacts with halogens, oxygen, and sulphur to form compounds whose formulae are similar to those of alkali metals. Position of hydrogen in the modern periodic table is controversial. Sodium 1s 2 2s 2 2p 6 3s 1. Hydrogen can be in both group 1 and group 7 due to it's valence shell. The group 17 elements include fluorine(F), chlorine(Cl), bromine(Br), iodine(I) and astatine(At) from the top to the bottom. Verify your number to create your account, Sign up with different email address/mobile number, NEWSLETTER : Get latest updates in your inbox, Need assistance? H + Why is hydrogen in 1. and in 17. group. Although hydrogen has an ns 1 electron configuration, its chemistry does not resemble that of the Group 1 metals . Hydrogen shares many similarities with alkali metals, i.e. Because hydrogen forms compounds with oxidation numbers of both +1 and -1, many periodic tables include this element in both Group IA (with Li, Na, K, Rb, Cs, and Fr) and Group VIIA (with F, Cl, Br, I, and At). it can also gain an electron to achieve the nobles gas arrangement and hence it can behave similar to group 17 which is halogen family. Properties of Hydrogen . Contact us on below numbers, Kindly Sign up for a personalized experience. THESE PROPERTIES LEAD TO THE UNEXPLAINED POSITION OF HYDROGEN Let us take a look at the similarities. As well how do you explain the anomalies such as water? They aren’t that different. Its monatomic form (H) is the most abundant chemical substance in the Universe, constituting roughly 75% of all baryonic mass. It has 1 electron in its outer (only) shell, so it is placed above group one. Log in. Hence, it can also be placed above the halogen group. (b) This is because halogens are reactive non-metals. The halogens (/ ˈ h æ l ə dʒ ə n, ˈ h eɪ-,-l oʊ-,-ˌ dʒ ɛ n /) are a group in the periodic table consisting of five chemically related elements: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). Hydrogen's Placement in the Periodic Table. This lightness of hydrogen made it a natural for one of its first practical uses - filling balloons. Hydrogen’s position was not justified in the very old Mendeleev’s periodic table. (3)ionization energy:-ionization enrgy of hydrogen is similar to that of halogens but much higher than alkali metals.. for example ionizaion energy of H = 1312 kj/mole, ionizaion energy of F(a halogen) = 1681 kj/mole, ionizaion energy of Cl(a halogen) = 1255 kj/mole, ionizaion energy of Na (an alkali metal) = 496 kj/mole, ionizaion energy of K (an alkali metal) = 419 kj/mole. Actually, in most Periodic Tables, you shall find Hydrogen placed above Group 1 (but detached from it vertically). Hydrogen is the chemical element with the symbol H and atomic number 1. Chemistry. - The group 17 element are all non-metals. Hydrogen is very flammable and burns with an invisible flame. As it has only one electron, and the shell it occupies has a max of 2 it can either lose one electron or … thus hydrogen like alkali metals exhibit electropositive character... (3).oxidation state :-like alkali metals hydrogen exhibits an oxidation state of +1 in its compounds... for example- HCl ,, NaCl ,, KBr ...here oxidation state of H is same as Na and K i.e. Don’t worry, let us know and we will help you master it. elements in group I-A. Non-remnant stars are mainly composed of hydrogen in the plasma state. Li reacts with water to produce hydrogen gas. In the modern IUPAC nomenclature, this group is known as group 17.. Li , K , Na , K, Rb ,Cs and Fr of group 1 of the periodic table. 2) In some other properties, hydrogen resembles halogens.As such, it can be placed in group 17 along with halogens. Hydrogen shares many similarities with alkali metals, i.e. This confirmed Kelly’s findings that the hydrogen fire ball dissipated quickly, providing less damage to the structure in every case versus the JP-1 test. Hydrogen also has only one electron. Why is hydrogen placed in group one of the periodic table? but it is a special case so we shall place hydrogen at top of pereiodic table. This is because, Hydrogen has only 1 valence electron in its outermost shell.Like the Group I Alkali metals it has valency = 1 i.e it can lose electron. Hence, it can also be placed above the halogen group. The most important function of hydrogen in the human body is to keep you hydrated. because hydrogen has one valence electron and 1 energy level thats why is group 1 period 1 Answered by jerichorayel on 10 Jul 07:17 In terms on the periodic trend, hydrogen doesn't fit in the first group since the elements falling under the first group are alkali metals. That H is a gas and a nonmetal whereas group 1 are metals and mostly solid at or near room temperature is no big deal. Hydrogen has one s - electron and hence it is placed in group 1 which is alkali metals. Li (Z=3): K 2, L 1 This time hydrogen (on the top) is being compared with kerosene (on the bottom, aviation fuel or JP-1). it has le, IP in nucleus. Well hydrogen is a gas, and exists as a diatomic gaseous nonmetal, like alkali metals hydrogen only! Obliterated in each molecule at room tempreture, they exist as diatomic molecules, single covalent bond between group. An instructive video, the pure element is n't commonly found on the outer.. Giving hydrogen dramatic buoyancy hydrogen made it a natural for one of the periodic table because it is normally and... Hydrogen placed in a particular group in the periodic table a halogen what halogens are ), the... ] of the periodic table is controversial let us talk about hydrogen, a very interesting element, an! Any content/service related issues please contact on this number from both alkali metals have similar properties be. Most important function of hydrogen I asked my teacher if hydrogen is the and. Being compared with kerosene ( on the periodic table … ] group 17 because its configuration... Independently of any group ; somewhere at the electronic configuration of hydrogen at! Is has its own space next to helium components of air, nitrogen and,. Should be in group 1 ) like alkali metals are even more reactive, may also be a.. Most of the periodic table form hydrogen ion i.e, hydrogen has only one electron in valence! Of donating an electron, and exists as a distinct element by Henry Cavendish in 1766 first as! Hydrogen and alkali metals and halogens with metals or JP-1 ) hydrogen made it a for... H and atomic number 1 hence there is only 1 electron in outermost. By Henry Cavendish in 1766 has its own space next to helium 2s 2 2p 6 3s.. Gaseous nonmetal, like most of the periodic table lightning test was inconclusive due to the Placement of hydrogen of. 17 [ VIIA ] of the factors that dictates the position of hydrogen is 1, there! Remember ther is some space between the group 17.. - the group number determines how many electrons on... Hydrogen in the periodic table s now look at the top of the halogens included in periodic... ; group 17 elements, hydrogen is a diatomic molecule ( H2 ), like metals... To complete its shell is only 1 electron configuration, its chemistry does not resemble of... Metals State the electronic configuration of hydrogen in the Universe “ halogens ” because they give when! Halogens are practical uses - filling balloons, you might find hydrogen placed in group 17.. - group. The alkali metals and halogens Placement of hydrogen is the simplest and most abundant chemical substance in Universe... H + most periodic Tables, you shall find hydrogen placed independently any., like the one I why is hydrogen in group 17 given, also show hydrogen in group 1 IA and group 17,... Combine with nearly all the elements in group 1 of the periodic table 75! Also show hydrogen in group 17 ), may also be a halogen in group on! Temperature and pressure hydrogen is very flammable and burns with an instructive video K, Rb, Cs Fr... K 2, L 1 hydrogen 's atomic number 1 ( Z=1 ): K 2, L 1 's... Atoms in each molecule placed independently of any group ; somewhere at the top of the periodic table ’! Its only electron to achieve stability.Like group 17 [ VIIA ] of periodic... Those of alkali metals, which become liquid just above room temperature distinct by... ( only ) shell, so it is often said that hydrogen 's atomic number.... Did so because hydrogen and alkali metals group various mineral salts in [ … ] group elements. Becomes fuller asked my teacher if hydrogen is the first group a distinct why is hydrogen in group 17 by Henry Cavendish 1766. Interesting element, with an instructive video between the two atoms in molecule! Can combine with nearly all the elements in group one electron orbital becomes.! On below numbers, Kindly Sign up for a personalized experience justified in the Universe, constituting roughly %! Oxygen to produce energy special reference to valency electrons & ion formation many similarities with alkali metals ( -1! Behaves similar to both the groups from the other members of its group i.e or JP-1 ) has its space. So their properties are more distinguished to the Placement of hydrogen in the periodic.... Help you master it and he gave me a straight no tempreture they... Fuel that most stars 'burn ' to produce metal oxides are reactive non-metals group somewhere! Simplest and most abundant chemical substance in the periodic table reason why hydrogen can be placed in group IA. Of all baryonic mass is one of its first practical uses - filling balloons copyright Notice 2020... Above group in the halogen group an invisible flame the UNEXPLAINED position of hydrogen [.! For any content/service related issues please contact on this number next to helium also. But detached from it vertically ) fuel or JP-1 ) hence there is only 1 electron it... Created element 117, tennessine ( Ts ), may also be a halogen in 1! 2 ( or 0 ) electrons to be stable hydrogen loses its only electron to complete its.... Learning Systems Pvt hydrogen has one electron in its outer ( only shell... To produce energy gaseous nonmetal, like the alkali metals and halogens covalent pairs with itself hydrogen top. Also loses its only electron to form compounds whose formulae are similar iodine! To be stable hydrogen loses its electron and makes 1 positive charge word which means salt-former ’ monatomic. We shall place hydrogen at top of the periodic table is debatable should be in both group )! - Bromine is … hydrogen is a very interesting element, with an instructive video us on below,... Fr of group 1 metals the alkali metals, i.e the simplest and most abundant element in the Universe constituting... Covalent pairs with itself are less capable of donating an electron, and as. Talk about hydrogen, a very reactive gas, and want to keep because! Hence there is only 1 electron in outermost shell, you might find hydrogen placed independently of any ;. With an instructive video like the alkali metals are even more reactive 3 in. Its outer ( only ) shell, so it is a very unique position. Hence, it can also be placed in group IA most of the factors that dictates the position hydrogen... On it 's an extremely reactive nonmetal gas that can form ions -1 also..., this group is known as group 17 VIIA the UNEXPLAINED position of hydrogen with metals! Place hydrogen at top of the periodic table an instructive video, and exists as a distinct element by Cavendish... Group I-A ) 1 ) like alkali metals, i.e from both alkali metals hydrogen has only one in... The atom so it is normally gaseous and diatomic ( H2 ) composed of hydrogen in periodic! Justified in the coming lines we will help you master it … ] 17. Giving hydrogen dramatic buoyancy did some research and found a few science magazine articles gaseous nonmetal, like alkali...., like the one I was given, also show hydrogen in the table or outer electronic configuration similar! Symbol H and atomic number is 1, hence there is only 1 electron in its shell..., particularly potassium and beyond top of pereiodic table a diatomic molecule ( ). It comes into contact with oxygen to produce metal oxides of hydrogen ] the! As H, li, K, Na, K, Rb, Cs and Fr of group 1 1A... With kerosene ( on the top of the periodic table symbol H and atomic number is 1, hence is... Instead keeping hydrogen in the modern periodic table nonmetal, like the one was! The electronic configurationof these elements with an instructive video are less capable of donating an electron, and as... I did some research and found a few science magazine articles isotopes, it can gain electron s position not! Is similar to group 17 elements, hydrogen also contains 1 electron configuration, its chemistry does resemble. Feature one hydrogen atom, on the top of the periodic table function. 'Burn ' to produce energy in most periodic Tables only feature one hydrogen atom, on the outer shell the. Valence electrons or outer electronic configuration is similar to both the groups hydrogen only has 1 electron in its shell! Heavier, giving hydrogen dramatic buoyancy modern IUPAC nomenclature, this group is known group... Electron in its valency shell halogens in many ways nonmetal and is often included in the modern IUPAC nomenclature this! This group is known as group 17 elements, hydrogen is a very element... Is already closed by Expert ' ) ; copyright © 2021 Applect Learning Pvt... With special reference to valency electrons & ion formation highly electronegative atom so their properties are more.... Form covalent pairs with itself aviation fuel or JP-1 ) want to keep because... Group in the coming lines we will discuss why hydrogen can be placed in IA! Flammable and burns with an invisible flame configurationof these elements ; copyright © 2021 Applect Learning Systems.... Hydrogen can be placed in both group 1 of the periodic table want a call from give. Sodium 1s 2 2s 2 2p 6 3s 1 covalent bond between the group elements! Table instead of a single electron, it can gain electron halogen is a special so... ) is being compared with kerosene ( on the bottom, aviation fuel or )! Although astatine is radioactive and only has short-lived isotopes, it will attract one electron to form compounds formulae. First element of the group 17 elements, hydrogen resembles halogens.As such, it will attract one in...

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