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Published byAnthony Reynolds Modified over 9 years ago
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Spectroscopy
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LEQs: What is the relationship between the types of energy in the electromagnetic spectrum and their frequency and wavelength? How does energy change impact the transition of electrons between energy levels?
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Emission/absorption of energy by electrons Absorb: move from lower to higher energy level Emission: move from higher to lower energy level Uses: Fireworks, Astronomy
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Equations: E=hv E: energy---measured in Joules(J) h: Planck’s constant 6.626 x 10 -34 v: frequency—measured in Hertz (Hz)
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c=λ v c: speed of light: 3.00 x 10 8 m/s λ: wavelength: measured in meters (m) v: frequency
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Ex: What is the energy content of a photon of light with a frequency of 5.3 x 10 14 Hz?
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EX: What is the frequency of a photon of light with a wavelength of 450 nm?
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Ex: What is the energy content of a photon with a wavelength of 6.2 x 10 -7 m?
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