When elements in the same group form molecules, the number of outer-shell electrons involved is the same and so the number of bonds forming the molecule is the same too.

Question

Pls explain

Answer 1

Pls explain w ith example

Answer 2

This question has been answered. Without a blackboard and in-person relationship, this is about the best one can do. See https://www.jiskha.com/questions/1818619/when-elements-in-the-same-group-form-molecules-the-number-of-outer-shell-electrons