**LS-1. Use the Balmer equation below (eq
1) to calculate the wavelengths for the four visible lines in
the hydrogen spectrum. What color is each of these lines? What
energy transitions are associated with each of these wavelengths?**

**LS-2. Use the generalized formula (eq
2) for energy level transitions to determine the shortest wavelength
in a) the Lyman series where nf = 1; b) the Paschen series where
nf = 3. c) Into what part of the electromagnetic spectrum do these
wavelengths fall?**

**LS-3. Startrek-the Fourteenth Generation
once featured a race of creatures whose molecular structure was
based on silicon. The bond strength between silicon atoms is 2.3
eV. What should be the wavelength of a phasor weapon to cause
these creatures to disintegrate?**

**LS-4. See figure 4 below which depicts
the energy-level diagram for the mythical element Mikeyum. a)
How much energy does it take to ionize an electron from its ground
state? b) A 15 eV photon is absorbed by an atom of Mikeyum. When
the atom returns to its ground state, what photon energies will
be present? c) What wavelengths are associated with the energies
in b) above? Are any of these wavelengths visible? d) What will
happen if an 8 eV photon strikes an atom of Mikeyum?**

l = 364.56 nm ( n*2 ) / ( n*2 - 2*2) n > 2 equation 1

l = 364.56 nm ( ni*2 ) /(ni*2 - nf*2) ni > nf

Return to Bohr-Rutherford
Model

**Last edited 12/26/05**