Which of the following represents the electronic configuration of the electropositive element ?

Options

A. `[He]2s^(1)`
B. `[Xe]6s^(1)`
C. `[He]2s^(2)`
D. `[Xe]6s^(2)`

Answer

B

Explanation

Group `1` elements with `ns^(1)` configuration are more electropositive `(EP)` than group `2(ns^(2))` configuration. Moreover, `EP` character increases down the group `1 (darr)`.
So, `Cr(6s^(1))` is the most `EP` element.