- Acids and Bases (22)
- Atomic Structure (39)
- Aufbau Principle (1)
- Bohr Model
- Electromagnetic Radiation (29)
- Periodic Trends (4)
- Quantum Numbers & Orbitals (27)
- The Wave Function
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- VSEPR Theory (7)
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- Kinetic Theory
- Real gas
- General Chemistry (213)
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- Organic Chemistry (63)
- Alcohols (1)
- Aldehydes and Ketones (1)
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- Amines
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- Carboxylic Acids & Esters (2)
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Topics: Atomic Structure - Electromagnetic Radiation
Electromagnetic Radiation
Electromagnetic radiation (sometimes abbreviated EMR) takes the form of self-propagating waves in a vacuum or in matter. EM radiation has an electric and magnetic field component which oscillate in phase perpendicular to each other and to the direction of energy propagation. Electromagnetic radiation is classified into types according to the frequency of the wave; these types include (in order of increasing frequency): radio waves, microwaves, terahertz radiation, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma rays. Of these, radio waves have the longest wavelengths and Gamma rays have the shortest. A small window of frequencies, called visible spectrum or light, is sensed by the eye of various organisms, with variations on the limits of this narrow spectrum.

added 13 years ago
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