Question

definition of atomic number​

Answer 1

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☑ The atomic number of an element is the number of protons on the nucleus of that element....

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Answer 2

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The atomic number of an element can be defined as the total number of electrons or protons in the atom of an element.

The number of protons and electrons in a stable neutral atom is always the same.

The atomic number of an element becomes its unique identifier, and helps classify a new element.

EXAMPLE OF SOME ELEMENT:

ATOMIC NUMBER OF MAGNESIUM:12

SODIUM;11