Question

What is atomic number?

Answer 1

The total no. of electrons / protons in an atom is defined as atomic no.
hope it helps you out

Answer 2

The atomic number of an element can be defined as the total number of electrons or protons in the atom of an element.

The number of protons and electrons in a stable neutral atom is always the same.

The atomic number of an element becomes its unique identifier, and helps classify a new element.