Question

describe the relationship between mass number and atomic​

Answer 1

The atomic number means number of protons or electrons and atomic mass number means the sum of proton and neutron in an atom

Answer 2

Hii...

Mass number = sum of number of protons and neutrons

Atomic number = Number of protons

Relation can be given as ,

(Z) Mass number = atomic number (A) + number of Neutrons

I hope this helps..☺️✌️