Hydrogen Atom Energy Levels?

E(subscript 6) --------------------------------------- E = -0.378 eV E(subscript 5) ----------------------------------------E = -0.544 eV E(subscript 4) ---------------------------------------- E = -0.850 eV E (subscript 3)-----------------------------------------E = -1.51 eV E(subscript 2)... show more E(subscript 6) --------------------------------------- E = -0.378 eV
E(subscript 5) ----------------------------------------... = -0.544 eV
E(subscript 4) ---------------------------------------- E = -0.850 eV

E (subscript 3)--------------------------------------... = -1.51 eV



E(subscript 2) ----------------------------------------... = -3.40eV

The figure shown above shows the energy levels for a hydrogen atom. What is the energy of the photon emitted when the electron in a hydrogen atom drops from energy level E(subscript 5) to energy level E(subscript 2)?
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