Worksheet
Energy Level Diagrams
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Refer to the following information for the next four questions.
The energy level diagram of a hypothetical atom is shown below.
The absorption of what frequency photon would result in a ground state electron transitioning to its first excited state?
The absorption of what frequency photon would result in a ground state electron transitioning to its second excited state?
The atom is now in its second excited state (n = 3). What wavelength photons could be emitted as the electron transitions back to its ground state?
What is the minimum amount of energy required to ionize the atom when it is in its ground state?
Refer to the following information for the next four questions.
A room temperature, monatomic gas is illuminated with a beam of 400 nm light and the gas is observed to absorb some of the light.
How much energy (in eV) would a ground state electron acquire when it absorbs a 400 nm photon?
As a consequence of absorbing this photon, what would be the energy associated with the electron's new excited state?
The excited atom subsequently emits visible light at both 400 nm and 650 nm. On the diagram shown above, complete an energy level diagram that would be consistent with these observations. Label each permitted energy level in eV.
At which other wavelength outside the visible range do these atoms emit radiation after they are excited by the 400 nm light?
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