Consider the energy levels for a hydrogen atom, listed in the table below. Each energy represents what is required for the negatively charged electron to escape. For example, if the electron were in the n = 1 level, it would need to gain 13.6 electron volts in order to escape the attraction of the atomic nucleus. Note: an electron Infinitely far from the proton is said to have zero potential energy, any closer, and its potential energy is said to be negative Level (n =) Energy (in eV) 1 - 13.6 2 -3.40 3 -1.51 4 -0.850 5 -0.544 6 -0.378 (a) What energy (In eV) would a photon have, if it were emitted when an electron dropped from the n 4 level to 27 X Double-check that you've used the correct initial energy level. ev (b) The equation for a photon's energy can be written: hc E. where his known as Planck's constant and is equal to 4.136 x 10-15 ev. s. (Note that h has a different numerical value in Si units.) Since we know that for light - 1, we can rewrite the equation for the energy of a photon as E-p.. What, then, is the frequency (in Hz) of the photon from your answer to part (a)? Your answer cannot be understood or graded. More Information Hz 2 Enter a number