An energy of `24.6 eV` is required to remove one of that electrons from a neutal helium atom. The enegy (in `eV`)required to remove both the electrons from a netural helium atom is

Options

A. 38.2
B. 49.2
C. 51.8
D. 79

Answer

D

Explanation

After removing one electron from helium atom it will become hydrogen like atom.
`:.E=24.6+(13.6)^(2)=79eV`