The Energy of the Nth Level in a One-Electron Atom

question 109

Multiple Choice

The energy of the nth level in a one-electron atom is E_n = -13.6(Z²/n²) eV.Consider a beryllium ion with all but one of its electrons removed (a beryllium atom normally has four electrons) .What is the energy of the electron when it is in the third-lowest energy state?

• A)-24 eV
• B)-7.6 eV
• C)-1.5 eV
• D)24 eV
• E)7.6 eV

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