The ground-state energy of hydrogen is -13.6 eV.The difference in energy between the n = 3 and n = 4 levels (magnitude only)is
A)1.1 eV
B)0.88 eV
C)0.66 eV
D)1.5 eV
E)0.33 eV

Question

Quizplus · Accepted Answer

The energy levels of hydrogen are given by the formula E_n = -13.6 eV / n^2. For n = 3, E_3 = -13.6 eV / 9 = -1.51 eV. For n = 4, E_4 = -13.6 eV / 16 = -0.85 eV. The difference is |-1.51 eV - (-0.85 eV)| = 0.66 eV.

The Ground-State Energy of Hydrogen Is -13