Which of the following electronic confirgration in the outermost shell is characteristic of alkali metals?

Options

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

Answer

C

Explanation

`N//A`