Explain what is the energy of the photon that is emitted
Explain what is the energy of the photon that is emitted when the state of an electron changes from n=4 to n=2 in a hydrogen atom?
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explain what is the energy of the photon that is emitted when the state of an electron changes from n4 to n2 in a
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state the second period elements that are lithium through neon in order of increasing first ionization
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