An electron in a hydrogen atom drops from the n= 3 energy level to the n=2 energy level. The energy of the emitted photon

Question

An electron in a hydrogen atom drops from the n= 3
energy level to the n=2 energy level. The energy of
the emitted photon is
A) 1.89 eV
C) 1.51 eV
B) 3.40 eV
D) 4.91 eV

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Dâu 4 years 2021-07-26T10:10:19+00:00 1 Answers 53 views 0

Answers ( )

  1. Ben
    0
    2021-07-26T10:12:03+00:00
    Reply

    Answer: D) 4.91 eV

    Explanation:

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )