Question 21 (1 point) What is the frequency of a quantum of EMR whose energy is (3.40x10^0) MeV? (Answer in Hz to 3 significant digits.) Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: x10 Answer Question 22 (1 point) A hydrogen atom emits a photon when its electron O makes one complete orbit around the nucleus Omoves from a higher energy level to a lower one ) moves from a lower energy level to a higher one O collides with its nucleus