CHEM 1A Chapter Notes - Chapter 7: Magnetic Quantum Number, Photon, Electromagnetic Spectrum

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1 May 2016
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Chapter 7 - the quantum-mechanical model of the atom (pp. Atomic spectroscopy and the bohr model (p. 306) The wave nature of matter: the de broglie wavelength, the uncertainty principle, and indeterminacy (p. 309) The theory of quantum mechanics explains the behavior of particles, such as photons (particles of light) and electrons, in the atomic and subatomic realms. Since the electrons of an atom determine many of its chemical and physical properties, quantum mechanics is foundational to understanding chemistry. Light is a type of electromagnetic radiation a form of energy embodied in oscillating electric and magnetic fields that travels though space at 3. 00 x 108 m/s. The wave nature of light is characterized by its wavelength the distance between wave crests and its ability to experience interference (constructive or destructive) and diffraction. The particle nature of light is characterized by the specific quantity of energy carried in each photon.