Question

Justify the position of hydrogen in the periodic table on the basis of its electronic configuration.

Answer 1

1st in period table due to 1s1 configuration

Answer 2

Answer :

Hydrogen has been placed at the top of the alkali metal in group, but it is not a member of the group.

Its position is not justified properly because of its electronic configuration as (1s1). It can be placed with alkali metals because it also has similar configuration (ns1) as alkali metals.

However, it can also be placed along with halogen in group 17 since just like halogen it can acquire inert gas configuration by accepting one electron.

$\rule{200}{2}$