How many unpaired electrons are there in the electronic structure for Cu+ ion?
A
1
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B
3
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C
5
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D
none of these
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Solution
The correct option is D none of these The atomic number of Cu is 29 and it forms Cu+ ion by the loss of one electron. Cu2+(Z=28):[Ar]3d104s0. Hence, Cu+ ion has no unpaired electron.