Question

The general electronic configuration of d block elements is _______.

• A. $n$$s^{(1-2)}$
• B. $n$$s^{\left(2\right)}$$n$$p^{(1-6)}$
• C. $n-1$$d^{(1-10)}$$n$$s^{(0-2)}$
• D. $n-1$$d^{(0-10)}$$n$$s^{(1-2)}$

Answer 1

Answer: (C)

$n-1$$d^{(1-10)}$$n$$s^{(0-2)}$

The element in d-block have $(0,1$ or $2)$ electrons in outermost S shell and $(1-10)$ electrons in penultimate d shell.

$\therefore$ The electronic configuration is:

${(n-1)d}^{(1-10)}{ns}^{(0-2)}$