Atomic number

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Pictorial representations

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Definition

The atomic number corresponds to the number of protons in the nucleus of an atom of that element. It also corresponds to the number of electrons in the neutral atom.

Units

None

Notes

Literature sources

1. International Union of Pure & Applied Chemistry: Commission on the Nomeclature of Inorganic Chemistry, Nomenclature of Inorganic Chemistry Recommendations 1990, Ed. G.J. Leigh, Blackwell Science, Oxford, 1990.
2. Pure Appl. Chem., 1994, 66, 2423.