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I'm really confused, they get energy that makes them "excited" but what releases the energy?

Qmechanic
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Owen Abbott
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1 Answers1

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Electrons can get excited by absorbing photons carrying energy. By absorbing a photon an electron's energy increases by exactly E=hf where h is planck's constant and f is the frequency of the photon. It is a natural tendency of everthing to remain at the lowest stable energy state, so to reach a lower energy state, the electron releases the energy in the form of a photon and acquires a lower energy and a more stable state.

Aniansh
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