1. 下列關於氫原子中電子的能階轉換,何者放出之光譜線能量最高?
(A) n = 5 → n = 2
(B) n = 3 →n = 1
(C) n = 7 →n = 3
(D) n = 9 →n = 4

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統計: A(0), B(9), C(0), D(1), E(0) #1939421