Question

An atomic number is equivalent to the number of protons and neutrons in the atom.

• A. True
• B. False

Answer 1

The correct option is A True

The atomic mass is the mass of an atom of a chemical element expressed in atomic mass units. It is equivalent to the number of protons and neutrons in the atom.
1 unified atomic mass unit is defined as $\frac{1}{12}$ of the mass of a single carbon-12 atom.