Question

The relative atomic mass of $N$ and relative molecular mass of $N_2$ are:

• A. $14,28$
• B. $7,14$
• C. $14,14$
• D. $7,28$

Answer 1

The correct option is A $14,28$

Relative atomic mass is the ratio of the average mass of one atom of an element to one-twelfth of the mass of an atom of carbon-12.

The relative atomic mass of N is 14 and relative molecular mass of $N_2$ is 28.

Hence, option A is correct.