For the H atom, the transition from the 2p state to the 1sstate is accompanied by the emission of a photon with anenergy of 16.2 × 10-19 J. For an Fe atom, the same transition (2p to 1s) is accompanied by the emission of X-raysof 0.193-nm wavelengths. What is the energy differencebetween these states in iron? Comment on the reason forthe variation (if any) in the 2p-1s energy-level spacing forthese two atoms.

Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter5: Quantum Mechanics And Atomic Structure
Section: Chapter Questions
Problem 43AP: In the hydrogen atom, the transition from the 2p state to the 1s state emits a photon with energy...
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For the H atom, the transition from the 2p state to the 1s
state is accompanied by the emission of a photon with an
energy of 16.2 × 10-19 J. For an Fe atom, the same transition (2p to 1s) is accompanied by the emission of X-rays
of 0.193-nm wavelengths. What is the energy difference
between these states in iron? Comment on the reason for
the variation (if any) in the 2p-1s energy-level spacing for
these two atoms.

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