alleryFor hydrogen-like ions of atomic number Z, the energy of the n-th level is:
A+13.6 Z²/n² eV
B−13.6 Z/n eV
C−13.6 n²/Z² eV
D−13.6 Z²/n² eV
Answer & Solution
Correct answer: D. −13.6 Z²/n² eV
E_n = −13.6 Z²/n² eV for hydrogen-like one-electron systems.
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