1.

What is the energy required to ionize an H-atom from the third excited state, if ground state ionization energy of H-atom is 13.6 eV?(a) 1.5 eV(b) 3.4 eV(c) 13.6 eV(d) 12.1 eVThe question was posed to me in quiz.My question is from Atomic Spectra in section Atoms of Physics – Class 12

Answer»

The CORRECT choice is (a) 1.5 eV

Easy explanation: From THIRD EXCITED STATE, E = \(\frac {-13.6}{16}\)

E = -0.85 eV

Energy required to ionize H-atom from SECOND excited state = 0 – (-0.85)

E = +0.85 eV



Discussion

No Comment Found

Related InterviewSolutions