The ionization energy of hydrogen atom in the ground state is

• GC Atomic Structure

The ionization energy of hydrogen atom in the ground state is

1. 13.6 MeV
2. 13.6 eV
3. 13.6 Joule
4. Zero

Answer

The ionization energy of a hydrogen atom is equal to 13.6 eV because the ground state has an energy of -13.6 eV in a hydrogen atom.

E_n = - 13.6 eV/n²

For the ground state, n = 1

E = - 13.6 eV

The correct option is B.