The Energy Change for an Electronic Transition in a One-Electron $\infty$

question 20

Multiple Choice

The energy change for an electronic transition in a one-electron atom or ion (H,He⁺,Li²⁺,etc.) from n_initial to n_final is given by ,where Z is the atomic number. How much energy is required to ionize a ground-state He⁺ ion (n_final = $\infty$ ) ?

• A)2.18 \(\times\) 10^-18 J
• B)4.36 \(\times\) 10^-18 J
• C)8.72 \(\times\) 10^-18 J
• D)1.09 \(\times\) 10^-18 J
• E)5.45 \(\times\) 10^-19 J

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