In what respect electronic configuration of hydrogen and halogens are similar ?

Options

A. Hydrogen and halogens have one electron in their outermost shell .
B. Hydrogen and halogens have one electron less then the noble gas configuration.
C. Hydrogen and halogens can lose one electron to form positive ions.
D. Hydrogen and halogens show noble gas configuration.

Answer

B

Explanation

`H - 1s^(1) , He - 1s^(2)`
Halogen, X - `ns^(2)np^(5)` , Inert gas - `ns^(2)np^(6)`
Both have one electron less than the nearest noble gas configuration.