Chemistry, 27.07.2021 02:10 cutiecat66

A certain atom has an energy state 3.50 eV above the ground state. When excited to this state, the atom remains for 2.0 ms, on average, before it emits a photon and returns to the ground state. (a) What are the energy and wavelength of the photon

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A certain atom has an energy state 3.50 eV above the ground state. When excited to this state, the a...