The energy required to ionize a hydrogen atom in its ground state is 13.6 eV. What is the energy required to ionize it from the 2nd orbit?
Q1. The energy required to ionize a hydrogen atom in its ground state is 13.6 eV. What is the energy required to ionize it from the 2nd orbit?
Answer: 3.4 eV
Explanation: The energy of the 2nd orbit is E2 = -13.6 / 4 = -3.4 eV. The energy required to ionize is 0 - E2 = 3.4 eV.