Question

Define atomic number.

Answer 1

Answer:

The number of protons that a chemical element has in its centre ( nucleus) is known as atomic number.

Answer 2

Answer:

atomic number is defined as the number of electron or Proton in an atom.

atomic number is defined as the number of electron or Proton in an atom.ATOMIC NUMBER= NO. OF ELECTRON OR PROTON

It is denoted by Z