Chemistry Electromagnetic Waves in Electromagnetic Spectrum

Type of Radiation

Frequency Range (Hz)

Wavelength Range

gamma-rays

10²⁰ – 10²⁴

< 10^-12 m

x-rays

10¹⁷ – 10²⁰

1 nm – 1 pm

ultraviolet

10¹⁵ – 10¹⁷

400 nm – 1 nm

visible

4 – 7.5*10¹⁴

750 nm – 400 nm

near-infrared

1*10¹⁴ – 4*10¹⁴

2.5 μm – 750 nm

infrared

10¹³ – 10¹⁴

25 μm – 2.5 μm

microwaves

3*10¹¹ – 10¹³

1 mm – 25 μm

radio waves

< 3*10¹¹

> 1 mm