Atom of an element has Z electrons and its atomic mass is 2Z + 3. The number of neutrons in its nucleus will be

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Rudraksh gadiya · Answer 1 · 2022-10-21T12:11:03+0000

Correct option is (b) Z + 3.

For a neutral atom -

Number of electrons = Number of protons

and mass Number = Number of electrons + Number of neutrons.

\(\therefore\) Number of protons = Z

\(\therefore\) Number of Neutrons = (2Z + 3) - Z

= Z + 3.