Question on: JAMB Chemistry - 2000

The electron configuration of 22X 2+ ion is

A
1s2 2s22p6 3s2 3p6 4s2 3d2
B
1s2 2s22p6 3s2 3p6 4s2 3d1
C
1s2 2s22p6 3s2 3p6
D
1s2 2s22p6 3s2 3p6 4s2
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Correct Option: D

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