In the following species, how many species have the same magnetic moment? (i) Cr\(^{2+}\) (ii) Mn\(^{3+}\) (iii) Ni\(^{2+}\) (iv) Sc\(^{2+}\) (v) Zn\(^{2+}\) (vi) V\(^{3+}\) (vii) Ti\(^{4+}\)