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Atomic number

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atomic number, in chemistry and physics, is (also known as the proton number), is also the number of protons found in the nucleus of an atom.

IdentificationEdit

It is conventionally represented by the symbol Z. The atomic number uniquely identifies a chemical element.

DetailsEdit

In an atom of neutral charge, atomic number is equal to the number of electrons.

ConfusionEdit

The atomic number Z should not be confused with the mass number A, which is the total number of protons and neutrons in the nucleus of an atom.

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