Hydrogen occupies a unique position in Modern Periodic Table”. Justify the statement.

Soln:

 

Hydrogen occupies a unique position in

Modern Periodic Table because of the following reasons.

1. Hydrogen and alkali metals have similar outer electronic configuration as both have one electron in their outermost shell.

1. Properties of Hydrogen are similar to properties of Halgens as electronic configurations of halogens and Hydrogen are same.