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atomic number

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Definition: Play

noun. The number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.

Sentence: Play Play

Theatomic numberof carbon is 6, indicating it has six protons in its nucleus.

Synonyms: Play

proton number; Z; element number

Antonyms: Play

mass number; neutron number; atomic mass

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