If the ground state ionisation energy of H-atom is 13.6 eV, the energy required to ionize a H-atom froms second, excited state is:

If the ground state ionisation energy of H-atom is 13.6 eV, the energy

1.	If the ground state ionisation energy of H-atom is 13.6 eV, the energy required to ionize a H-atom froms second, excited state is:
Answer» 1.51 eV 3.4 eV 13.6 eV 12.1eV Answer :D

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If the ground state ionisation energy of H-atom is 13.6 eV, the energy required to ionize a H-atom froms second, excited state is:

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