Question

Among the following series of transition metal ions, the one where all metal ion have $3d^2$ electronic configuration is
(At. $wtTi=22,V=23,Cr=24,Mn=25$)

• A. $T{i}^{3+},V^{2+},C{r}^{3+},M{n}^{4+}$
• B. $T{i}^{+},V^{4+},C{r}^{6+},M{n}^{7+}$
• C. $T{i}^{4+},V^{3+},C{r}^{2+},M{n}^{3+}$
• D. $T{i}^{2+},V^{3+},C{r}^{4+},M{n}^{5+}$

Answer 1

Answer: (D)

$T{i}^{2+},V^{3+},C{r}^{4+}$ and $M{n}^{5+}$ show $1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{0}3d^2$ electronic configuration.