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CBSE Class 10 Answered

why can hydrogen be placed in group1 and 7
Asked by Dhanya johnson | 03 Oct, 2010, 12:00: AM
answered-by-expert Expert Answer
Dear Student
Hydrogen has one valence electron like elements of group 1 and the formula of its halides  is similiar to that of other group 1 elements for example HCl , NaCl
On the other hand like group 17 elements it also exists as a diatomic molecule
For example H2 ,Cl2
Thanks
Topper's Team
Answered by | 03 Oct, 2010, 09:37: PM

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