Question

What in atom?? Define atomic number?

Answer 1

An atom is the smallest unit of matter composed of electrons, protons and neutrons with a nucleus present..
It is electrically stable..
Atomic number of an atom is generally the number of protons present in it..

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Answer 2

Answer:

An atom is the fundamental unit of matter that constitutes everything in this world. It is made of protons, electrons and neutrons which are sub-atomic particles.

Atomic number is the number of protons or electrons in an atom.

Explanation: