1. The energy for one state of the H atom is -2.18 *10 ^18 J. What frequency (Hz) of light would need to be absorbed to reach a state with an energy of -8.72 X 10^ -20 J? Express answer in scientific notation.
2. The energy levels the electron can occupy in the Li2+ ion can be calculated using the energy level equation. A Li2+ ion emitted a photon with a frequency of 2.78 × 1016 Hz to reach an energy level with n=1. What was the value of n for its initial energy level?
3. The energy required to split apart dichlorine according to the equation is 3.99 × 10-19 J/molecule.
Cl2(g) ? 2Cl(g)
Calculate the wavelength (m) of the photon that can dissociate dichlorine.
Rework your solution from the beginning and check each step carefully.