# 1. In a Be ion, What is the transition energy for the n-4 to n-2 transition?...

###### Question:

1. In a Be ion, What is the transition energy for the n-4 to n-2 transition? a. b. What are the frequency and wavelength of the photon at that energy? 2. An electron is in a 1-dimensional box of length of 10 Å. (me-9.11 x 103" kg) What is the n-2 energy in J? a. b. What is the new energy if the length of the box is doubled? c. If the energy is then increased by a factor of 4, what would n equal? 3. An electron in the (1,1,1) state of a 3-dimensional cubic box has energy 2.18 x 10-18 a. What is the energy of the (2,1,1) state? b. What is the energy of the (1,1,2) state? c. What is the volume of that box?

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