Question

what do you mean by atomic number and mass number​

Answer 1

Answer:

The atomic number or proton number of a chemical element is the number of protons found in the nucleus of every atom of that element. The atomic number uniquely identifies a chemical element. It is identical to the charge number of the nucleus.

The mass number, also called nucleon number, is the total number of protons and neutrons in an atomic nucleus. It is approximately equal to the atomic mass of the atom expressed in atomic mass units.

Hope it helps you

Please mark me as the Brainliest

Thank you