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Question

How many unpaired electrons are there in $${Ni}^{2+}$$? $$\left(Z=28\right)$$


A
0
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B
8
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C
2
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D
4
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Solution

The correct option is C $$2$$
$$\displaystyle {Ni}^{2+}$$ with outer electronic configuration of $$\displaystyle 3d^8$$  has two unpaired electrons as shown in the image.

702579_645332_ans_b41941215a854c07b980648df6c05c1c.png

Chemistry

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