Atomic number is the number of present in the nucleus of an atom.

protons

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electrons

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neutrons

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Solution

The correct option is A protons
The atomic number of a chemical element is the number of protons found in the nucleus of an atom. In an uncharged atom, the atomic number is also equal to the number of electrons.

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Atomic number of an element is the number of _______ present in the nucleus.

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