Question

What is an atomic number? State its characteristics.
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Answer 1

Answer:

The atomic number uniquely identifies a chemical element. It is identical to the charge number of the nucleus. In an uncharged atom, the atomic number is also equal to the number of electrons. The sum of the atomic number Z and the number of neutrons N gives the mass number A of an atom

Answer 2

$\huge\underline\bold{♡Answer♡}$

The atomic number uniquely identifies a chemical element.

• It is identical to the charge number of the nucleus.
• In an uncharged atom, the atomic number is also equal to the number of electrons.
• The sum of the atomic number Z and the number of neutrons N gives the mass number A of an atom.

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