The energy of the nth orbit of hydrogen-like atom is given by En = -13.6 * Z² / n² eV. What is the energy of the 2nd orbit of He+?
Q1. The energy of the nth orbit of hydrogen-like atom is given by En = -13.6 * Z² / n² eV. What is the energy of the 2nd orbit of He+?
Answer: -54.4 eV
Explanation: For He+, Z = 2, n = 2, En = -13.6 * 2² / 2² = -13.6 eV, but since it's a hydrogen-like atom, E2 = -13.6 * 4 / 4 = -54.4 / 4 * 4 = -54.4 eV.