Give the electronic configuration of the given metal atom.
$N i$ :

[A r] 3 d^{4} 4 s^{1}

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[A r] 4 s^{2} 3 d^{8}

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[A r] 3 d^{5} 4 s^{0}

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None of these

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Solution

The correct option is D
$[A r] 4 s^{2} 3 d^{8}$

Option (B) is correct.
Electronic configuration of $N i$ is $[A r] 4 s^{2} 3 d^{8}$

Atomic no. of nickel is 28. Its configuration is $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 4 s^{2} 3 d^{8}$

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Similar questions

C r^{3 +}

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 3 d^{10}

[A r] 3 d^{6}

(A t o m i c N u m b e r : M n = 25, F e = 26, C o = 27, N i = 28)

1 s^{2} 2 s^{1}

1 s^{2} 2 s^{2} 2 p^{3}

1 s^{2} 2 s^{2} 2 p^{4}

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{1}

I E_{1}

I E_{2}

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