The number of negative charges present outside the nucleus in an atom is called

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Atomic mass

Atomic number

Atomic weight

Mass number

answer is B.

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Detailed Solution

In an atom, the negative charge particles (electrons) are present outside the nucleus. For neutral atom of element, number electrons (negative charge particles) present in the outside of nucleus is called “Atomic number (Z)”. Note: In neutral atom, number of protons is equal to number of electrons.

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