Which of the following species would be expec | vedclass

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Question

(C) The electronic configuration of $Cu$ is $[Ar] \, 3d^{10} 4s^1$. For $Cu^{+}$,the configuration is $[Ar] \, 3d^{10}$,which has no unpaired electron

Vedclass · Accepted Answer

$Cu^{2+}$

Vedclass · Answer

(C) The electronic configuration of $Cu$ is $[Ar] \, 3d^{10} 4s^1$. For $Cu^{+}$,the configuration is $[Ar] \, 3d^{10}$,which has no unpaired electrons (diamagnetic). For $Cu^{2+}$,the configuration is $[Ar] \, 3d^9$,which has one unpaired electron. Since $Cu^{2+}$ contains an unpaired electron,it is paramagnetic. Therefore,the correct option is $(C)$.

Which of the following species would be expected to be paramagnetic?

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