n = α ----------------- 0.0eV
E = 3 ----------------- - 1.6eV
E = 2 ----------------- -3.7eV
E = 1 ----------------- -5.5eV
E = 0 ----------------- -10.4 eV
The energy levels in the mercury atom is illustrated in the diagram above. Calculate the ionisation energy of the atom.
Answer: B
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