which among is paramagnetic
1.zn+2
2.cu+2
3.Mn+2
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Answer:
Paramagnetic - unpaired electrons
Explanation:
To be simple ,
Zn2 + has completely filled orbitals (that is in the d orbital it has complete 10 electrons).It is diamagnetic.
Cu2+ has one electron more to get fully filled configuration hence it has one unpaired electron.It is paramagnetic.
Mn2+ has no unpaired electron in its orbitals.It is also diamagnetic.
Hence ,from given options it can be concluded that Cu2+ is paramagnetic.
Hope you find this useful.
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