11. The photoelectron spectrum of dihydrogen shows a single set of multiplets between 16 and 18 eV ( electron volts ). 12. HI regions effectively absorb photons that are energetic enough to ionize hydrogen, which requires an energy of 13.6 electron volts . 13. After the collision, the electron inside occupies a higher energy level with 4.9 electron volts ( eV ) more energy. 14. Electrons in a television set are accelerated by a picture tube to an energy of about 50, 000 electron volts . 15. The variable measured is most often the light's reciprocal centimeters or electron volts , which has a reciprocal relationship to wavelength. 16. The binding energy of the 1s orbital of an atom with Z protons is approximately 13.6 * Z electron volts . 17. The energy released by this reaction is in millions of electron volts , which is actually only a tiny amount of energy. 18. :: : : The energy per atom would be at least a few thousand electron volts , so it would probably be nuclear. 19. To treat tumors at greater depths, the proton accelerator must produce a beam with higher energy, typically given in eV or electron volts . 20. The immediate energy release per atom is about 180 million electron volts ( MeV ); i . e ., 74 TJ / kg.
