$[A r] 3 d^{10} {4 s}^{1}$ is electron shell configuration for:

A u

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A g

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Z n

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C u

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A l

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Solution

The correct option is C $C u$
$[A r] 3 d^{10} s^{1}$ is electron shell configuration for $C u$ with atomic number 29. It has completely filled $3 d$ subshell and half filled $4 s$ subshell. $C u$ belongs to first transition series.

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Similar questions

How many of the following metals are extracted by self reduction process?
$P b, A u, M g, S n, F e, A l, A g, H g, N a, Z n, C u, C a$

C u, {C u}^{2 +}, {Z n}^{2 +}, {C r}^{3 +}

C u^{2 +}

3 d^{9}

C u^{+}

3 d^{10}

1 s^{2} 2 s^{2} 2 p^{6} 3 s^{2} 3 p^{6} 3 d^{5} 4 s^{1}

C u

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