The electronic configuration of an ion M...

The electronic configuration of an ion `M^(2+)` is `1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(6)` and the atomic weight of M is 56. The number of neutrons in the nucleus of `M^(2+)` is

A

24

B

26

C

28

D

30

Verified by Experts

The correct Answer is:

D

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