Question

Differentiate between atomic number and mass number of an element​

Answer 1

1. The mass number is the sum of the protons and neutrons in an atom

2. The atomic number is only the number of protons

• also atomic number will be equal to the element number

Answer 2

Atomic mass is associated with the number of neutrons and protons that are present in a particular nucleus of an element.

Atomic number is usually the number of protons present in an element's nucleus. It is the average weight of an element. It is the total number of nucleons in the atom's nucleus.