Question
what is atomic mass number? mention its formula.

Answer

Atomic mass number (A) is equal to the sum of the number of protons(p) and neutrons (n) in the nucleus.
Atomic mass or mass number = Number of Protons + Number of Neutrons

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free