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Physics, 03.03.2020 00:05 qvezne7683
A singly ionized helium atom is in the ground state. It absorbs energy and makes a transition to the n = 3 excited state. The ion returns to the ground state by emitting two photons. What are their wavelengths?
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A singly ionized helium atom is in the ground state. It absorbs energy and makes a transition to the...
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