12. What is the minimum energy needed to ionize a hydrogen atom when it is in the n = 2 state? (A) 1.9 eV (C) 12.2 eV (B) 3.4 eV (D) 13.6 eV

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12. What is the minimum energy needed to ionize a hydrogen atom when it is in the n = 2 state?
(A) 1.9 eV
(C) 12.2 eV
(B) 3.4 eV
(D) 13.6 eV
Transcribed Image Text:12. What is the minimum energy needed to ionize a hydrogen atom when it is in the n = 2 state? (A) 1.9 eV (C) 12.2 eV (B) 3.4 eV (D) 13.6 eV
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