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Chemistry Question on d -and f -Block Elements

Which of the following is the electronic configuration of Cu2+Cu^{2+} (Z=29)?

A

[Ar]3d9\left[Ar\right]3d^{9}

B

[Ar]4s13d8\left[Ar\right]4s^{1}3d^{8}

C

[Ar]4s23d104P1\left[Ar\right]4s^{2}3d^{10}4P^{1}

D

[Ar]4s13d10\left[Ar\right]4s^{1}3d^{10}

Answer

[Ar]3d9\left[Ar\right]3d^{9}

Explanation

Solution

Cu(Z=29):[Ar]4s13d10Cu \left(Z = 29\right) : \left[Ar\right]4s^{1}3d^{10} Cu2+:[Ar]3d9.Cu^{2+}: \left[Ar\right]3d^{9}.