In general, how do you calculate the energy of a photon that is needed to move an electron between two energy levels?

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In general, how do you calculate the energy of a photon that is needed to move an electron between two energy levels?

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All radiations consist of particles called photons, which are quanta or packets of energy.

These quanta of radiations have the same frequency as the frequency of the radiation carrying them, and with increasing frequency of radiations, their energy also increases.

When radiations are incident on any substance, the electrons present in the atoms of these substances absorb these photons, and gain energy, by which they are able to transit to a higher energy level.

When the electrons de-excite after a short time, they release energy back in the form of another photon.

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