Question

The value of ionisation energy of the hydrogen atom is

• A. 3.4 V
• B. 10.4 eV
• C. 12.09 eV
• D. 13.6 eV

Answer 1

Answer: (D)

13.6 eV

Answer 2

The minimum energy required to free the electron from the ground state of the hydrogen atom is called the ionization energy of hydrogen atom its value is $13.6$eV.