Question

what do you mean by atomic number

Answer 1

The atomic number or protonnumber (symbol Z) of a chemical element is the number of protons found in the nucleus of an atom. It is identical to the charge number of the nucleus. 

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Answer 2

Hi there dear user ^_^

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《 ANSWER 》

◇ The number of protons in one atom of an element is known as atomic number of ab element. That is:

Atomic number of an element = Number of protons in atom of an element.

It is denoted by the letter Z.

You can also define an atomic number like this:

◇ The atomic number of an element is equal to the number of electrons in a neutral atom.

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