Question

The transition elements have a general electronic configuration.

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

Answer 1

Answer: (C)

In the transition elements, the d-orbitals are successively filled. The general electronic configuration of d-block is
$(n-1)d^{1-10}n{s}^{1-2}$
Where $(n-1)$ stands for inner shell and d-orbitals may have one to ten electrons and the s-orbital of the outermost shell $(n)$ may have one or two electrons.