Question

define the following term - atomic number

Answer 1

$\textbf{Atmoic Number }$

It refers to the number of protons, in the nucleus of the element.

For example :

Atomic number of He is 2, it means that it have 2 protons in its nucleus.

Answer 2

$\textbf{HEY MATE}$

HERE IS THE ANSWER ✌
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$\textcolor{blue}{ATOMIC\: NUMBER}$

The atomic number of a chemical element is the number of protons in the nucleus of an atom of the element.
It is the charge number of the nucleus, since neutrons carry no net electrical charge.

The atomic number is also known as the proton number. It may be represented by the capital letter Z.

Example : Hydrogen atomic number is 1.

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