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JEE CHEMISTRY MCQ: STRUCTURE OF ATOM

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A metallic ion

{M^{2 + }}

ion has a electronic configuration of 2, 8, 14 and the ionic weight is 56 amu. The number of neutrons in its nucleus are

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Correct option: A

30

Option A (30) is correct because the number of neutrons is the difference between the mass number and the atomic number.

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