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10
Chemistry
10th Grade
09/22/2009

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Term
electromagnetic radiation
Definition
a form of energy that exhibits wavelike behavior as it travels through space
Term
wavelength
Definition
the shortest distance between equivalent points on a continuos wave
Term
frequency
Definition
the number of waves that pass a given point per second
Term
amplitude
Definition
the wave's height from the origin to a crest, or from the origin o a trough
Term
electromagnetic spectrum
Definition
encompasses all forms of electromagnetic radiation, with the only differences in the types of radiation being their frequencies and wavelengths.
Term
quantum
Definition
the minimum amount of energy that can be gained or lost by an atom
Term
Planck's constant
Definition
  • has a value of 6.626 x 10^-34 Jxs
  • J = joule
Term
photoelectric effect
Definition
electrons, that are called photoelectrons, are emitted from a metal's surface when light of a certain frequency shines on the surface
Term
photon
Definition
a particle of electromagnetic radiation with no mass that carries a quantum of energy
Term
atomic emission spectrum
Definition
the set of frequencies of the electromagnetic waves emitted by atoms of the element
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