The energy required to remove an electron from the ground state of hydrogen atom is 13.6 eV. What is the energy required to remove an electron from the first excited state?
Q1. The energy required to remove an electron from the ground state of hydrogen atom is 13.6 eV. What is the energy required to remove an electron from the first excited state?
Answer: 3.4 eV
Explanation: Energy required to remove an electron from n = 2 is 13.6 / 2² = 3.4 eV.