Question

The weight of $4$ gram atoms of nitrogen is:

• A. 56 gm
• B. 112 gm
• C. 42 gm
• D. 28 gm

Answer 1

The correct option is A 56 gm

$1$ gram atom of an element is equivalent to one mole of it.

Weight of $1$ gram atom of nitrogen is $14$ gms.

Thus, $4$ gram atoms weigh $56$ gms.