Given the energy levels of electrons in a hydrogen atom (table), rank the photons emitted by the following electron transitions from longest to shortest wavelength. Longest wavelength Shortest wavelength Electron Energy Levels in Hydrogen Energy level n = 1 n = 2 n = 3 n = 4 Energy (eV) E₁ -13.6 E2=-3.4 E3 -1.5 E4=-0.85 n = 4 to n = 1 n = 4 to n = 2 n=3 ton 1 n = 3 to n = 2 The minimum frequency of light needed to eject electrons from a metal is called the threshold frequency, vo- Find the minimum energy needed to eject electrons from a metal with a threshold frequency of 5.08 × 10% s-1. Number J th what maximum kinetic energy will electrons be ejected when this metal is exposed to light with a wavelength of = 275 nm? KE = electron Number J