Chemistry, 25.09.2019 01:20 jocelynmarquillo1

Which of the following non-hydrogen atom transitions does the photon have at its long wavelength?
move from level n=6 to level n=1
move from level n=4 to level n=1
move from level n=3 to level n=2
move from level n=5 to level n=4
explain thae way, how i can solve such questions and how to calculate (if needed) in future?

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Which of the following non-hydrogen atom transitions does the photon have at its long wavelength?