Question

What is atomic number? Who coined this term

Answer 1

number of proton is atomic no. of atom.

Answer 2

⭕️Atomic number of an atom of an element is equal to the number of electrons or protons in an atom.


⭕️the atomic number gives the number of protons in nucleus.


⭕️In a neutral atom number of electrons equal to number of protons.
It is denoted by 'Z'.

⭕️Atomic number = Number of protons or number of electrons

✔️✔️Example:

➖Hydrogen atom contains 1 proton, so its atomic number is 1.

➖For krypton, Number of Protons = Atomic Number = 36.

✔️✔️This was the discovery made by :-
Henry Gwyn-Jefferies Moseley !



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