Question

The general electronic configuration $(n-1)d^{3}n{s}^2$ indicates that particular element belongs to:

• A. VB
• B. IVB
• C. VIB
• D. IIIB

Answer 1

Answer: (A)

$(n-1)d^{1}n{s}^2$ shows III B group $(n-1)d^{2}n{s}^2$ shows IV B group $(n-1)d^{3}n{s}^2$ shows V B group $(n-1)d^{5}n{s}^2$ shows VI B group $\begin{array}{c}(n-1)d^{6}n{s}^2\\ (n-1)d^{7}n{s}^2\\ (n-1)d^{8}n{s}^2\end{array}\}$ Shows VIII group $(n-1)d^{10}n{s}^1$ shows I B group