1. How much energy can be produced from 7.2 x 10* kg of mass? a. 6.48 x 1013 J b. 8 x 1021 J c. 2.16 x 105 J d. 2.4 x 10-12 J 2. State two pieces of evidence that show that light behaves like a wave. . Diffraction . refraction 3. What is the approximate wavelength for a photon that has an energy of 3.2 x 10-17 Joules? a. 2.12 x 10-50 m b. 4.83 x 1016 m c. 9.38 x 1024 m d. 6.22 x 10:09 m 4. What is the minimum amount of energy required to ionize a hydrogen atom in the n = 3 state? a. 13.60 ev 6 1.51 eV c. 12.06 ev d. .66 ev 5. After electrons in a mercury atom are excited to the d energy level, how many different frequencies of photons can be emitted as the electrons return to the ground state? a. 2 b. C. 6 d. 8 6. A hydrogen atom consists of one proton, two neutrons, and one electron. This atom contains a total of a. 3 quarks and 1 lepton b. 9 quarks and 1 lepton c. 6 quarks and 4 leptons d. 9 quarks and 4 leptons