What is the relationship between the number of energy levels that an electron falls and the energy of the photon that is emitted when it falls?

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Explanation:

Light is absorbed when an electron jumps to a higher energy orbit and emitted when an electron falls into a lower energy orbit. The energy of the light emitted or absorbed is exactly equal to the difference between the energies of the orbits.

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"the periodic table is arranged in order of atomic number."