Which of the following ions is expected to be diamagnetic ?

Question

Aicharya · Accepted Answer

The electronic configurations are: ${ }_{25} \mathrm{Mn}^{2+}(3 \mathrm{d})^{5} ;{ }_{29} \mathrm{Cu}^{+}(3 \mathrm{d})^{10} ;{ }_{27} \mathrm{Co}^{3+}(3 \mathrm{d})^{6} ;{ }_{29} \mathrm{Cr}^{3+}(3 \mathrm{d})^{3} \cdot{ }_{29} \mathrm{Cu}^{+}$has no unpaired electrons, so it is diamagnetic. ,

Which of the following ions is expected to be diamagnetic ?

Solution