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Why is Hydrogen placed in group I of the modern periodic table ?

Why is Hydrogen placed in group I of the modern periodic table ?

Grade:12

3 Answers

Vikas TU
14149 Points
9 months ago
Dear student 
Alkali metals are the chemical elements found in Group 1 of the periodic table. Although often listed in Group 1 due to its electronic configuration, hydrogen is not technically an alkali metal since it rarely exhibits similar behavior
Mayank Ranka
askIITians Faculty 214 Points
8 months ago
Dear student,

Hydrogen is placed in group I of the modern periodic table due to following reasons:-

(1) It shows outer electronic configuration similar to group I elements (i.e.1s1).
(2) It readily looses its electron to form H+ ion which resembles the electropositive character of group I elements.
(3) It shows +1 oxidation state like alkali i.e. group I elements.
(4) Hydrogen also acts as a strong reducing agent like alkali metals and also forms binary compounds with electronegative elements which resembles the group I elements.
ajay
100 Points
2 months ago

Hydrogen is placed in group I of the modern periodic table due to following reasons:-

(1) It shows outer electronic configuration similar to group I elements (i.e.1s1).
(2) It readily looses its electron to form H+ ion which resembles the electropositive character of group I elements.
(3) It shows +1 oxidation state like alkali i.e. group I elements.
  • (4) Hydrogen also acts as a strong reducing agent like alkali metals and also forms binary compounds with electronegative elements which resembles the group I elements.​​

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