Chemistry - Complete d-block Question with Solution | TestHub

It has$5$electrons in$3\mathrm{d}$and one electron in$4\mathrm{s}$orbitals

The principal quantum numbers of its valence electrons are$3$and$4$

It has$6$electrons in$3\mathrm{d}$orbital

Its valance electrons have quantum number$\text{l}=0$