Question

what is atomic number?​

Answer 1

https://www.britannica.com/science/atomic-number

atomic number | Definition & Facts | Britannica

Answer 2

Explanation:

The total number of protons present in the nucleus of an atom represents the atomic number of a particular atom. Every atom of a particular element is composed of the same number of protons and therefore have the same atomic number.

The atomic number is denoted by 'Z'.