Social Sciences, asked by itsayankhan73, 20 days ago

Define atomic numbers.

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Answered by Rajnandini1466

Answer:

the number of protons in the nucleus of an atom, which is characteristic of a chemical element and determines its place in the periodic table.

Answered by barbiegirl914

Answer:

The atomic number of an atom is equal to the number of protons in the nucleus of an atom or the number of electrons in an electrically neutral atom. Atomic number = Number of protons. For example, in a sodium atom, there are 11 electrons and 11 protons.

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