## Chemistry 9th Edition

Wavelength: the distance between two consecutive peaks or troughs in a wave. Frequency: the number of waves (cycles) per second that pass a given point in space. Photon Energy: the amount of energy carried by a photon Speed of Travel: speed of light (2.998*10$^8$ m/s) Increasing Wavelength: gamma rays, ultraviolet, visible light, microwaves Increasing Frequency: microwaves, visible light, ultraviolet, gamma rays Increasing Photon Energy: microwaves, visible light, ultraviolet, gamma rays All types of EMR have the same speed of travel