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How many unpaired electrons are there in...

How many unpaired electrons are there in `Ni^(2+)`?

A

0

B

2

C

4

D

8

Text Solution

Verified by Experts

The correct Answer is:
B
`Ni(Z= 28) or 3d^(6) 4S^(8)4S^(2)`ltBRgt `:. Ni^(2+) = d^(8)`
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