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An electron is orbiting a newly discovered +5e particle. The mass of this new particle is...

An electron is orbiting a newly discovered +5e particle. The mass of this new particle is 3 times the mass
of an electron.
What is the reduced mass for this system?
What are the radii of stable orbits for this system? Your expression should only depend on n and
various constants.
What are the energy levels for this system? Your expression should only depend on n and various
constants.
If an electron makes a transition from the n = 3 state to the n = 2 state, what is the wavelength of
the emitted photon.
What is the wavelength of the photon required to ionize this system? Assume the system is in n = 1.

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