Why does an atom usually absorb radiation only from the ground state whereas a diatomic molecule can

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Why does an atom usually absorb radiation only from the ground state whereas a diatomic molecule can absorb radiation from many different rotational states?

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Fundamentals of Ethics for Scientists and Engineers

ISBN: 978-0195134889

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Authors: Edmund G. Seebauer, Robert L. Barry

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Question Posted: Nov 28, 2011 11:11 AM

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Why does an atom usually absorb radiation only from the ground state whereas a diatomic molecule can

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The energy of the first excited state of an atom is orders of magnitude greater ...View the full answer

Fundamentals of Ethics for Scientists and Engineers

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