Question

Atomic mass is equal to

a) Equivalent massValency
b) Equivalent massAtomic number
c) Equivalent mass × Valency
d) Equivalent mass × Atomic number

Answer 1

Explanation:

The mass of an atom in AMU is roughly equal to the sum of the number of protons and neutrons in the nucleus. The AMU is used to express the relative masses of, and thereby differentiate between, various isotopes of elements.