Question

what is atomic number​

Answer 1

Answer:

The number of protons or electrons present in a atom of an element is called it's atomic number .

eg. the atomic number of oxygen is 8.

the atomic number of chlorine is 17.

Answer 2

Answer:

The number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.

Explanation: