Write down the electronic configuration of a copper ion in this complex ion: [Cu(H2O)6]2+
The electronic configuration is 1s2,2s2,2p6,3s2,3p6,3d9 (or [Ar]3d9); as the electronic configuration of the neutral copper is [Ar]3d10,4s1, which is unusual and differs from most transition metal ions.
MF
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