The general valence shell electronic configuration of transition elements is

Options

A. `(n-1)d^(10),(n+1)s^(2)`
B. `(n-1)d^(1-10),(n+1)s^(1-2)`
C. `(n-1)d^(1-10),np^(6),ns^(2)`
D. `(n-1)d^(1-10),ns^(1-2)`

Answer

D

Explanation

Generally, d-block elements are called transition elements as they contain inner partially filled d-subshell. Thus, their general electronic configuration is
`(n-1)d^(1-10),ns^(1-2)`