Among the following series of transition metal ions, the one where all metal ions have $3 d^{2}$ ele

Question

Among the following series of transition metal ions, the one where all metal ions have $3 d^{2}$ electronic configuration is\[At. nos. $\mathrm{Ti}=22, \mathrm{~V}=23, \mathrm{Cr}=24, \mathrm{Mn}=25$ ]\

Professor PC Thomas Classes · Answer

(d) $:{ }_{22} \mathrm{Ti}: 3 d^{2} 4 s^{2} ; \mathrm{Ti}^{2+}: 3 d^{2}$\ ${ }_{23} \mathrm{~V}: 3 d^{3} 4 s^{2} ; \mathrm{V}^{3+}: 3 d^{2}$\ ${ }_{24} \mathrm{Cr}: 3 d^{4} 4 s^{2} ; \mathrm{Cr}^{4+}: 3 d^{2}$\ ${ }_{25} \mathrm{Mn}: 3 d^{5} 4 s^{2} ; \mathrm{Mn}^{5+}: 3 d^{2}$