What region of the electromagnetic spectrum does this correspond to? (Refer to the frequency range chart for the EM spectrum below.) EM Spectral Region Wavelength (angstroms) Frequency (Hz) Radio > 109 < 3 109 Microwave 109 to 106 3 109 to 3 1012 Infrared 106 to 7,000 3 1012 to 4.3 1014 Visible 7,000 to 4,000 4.3 1014 to 7.5 1014 Ultraviolet 4,000 to 100 7.5 1014 to 3 1016 X-rays 100 to 0.1 3 1016 to 3 1019 Gamma rays < 0.1 > 3 1019 radio microwave infrared visible ultraviolet x-rays gamma rays