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12 Cards in this Set

  • Front
  • Back
The spectrum produced when atoms absorb specific wavelengths of incoming light as they become excited from lower to higher energy levels.
Absorption Spectrum
The continuum of wavelengths of radiant energy.
Electromagnetic Spectrum
The line spectrum produced when excited atoms emit photons characteristic of the element.
Emission Spectrum
Any electron configuration of an atom or molecule other than the lowest energy (ground) state.
Excited State
The number of cycles a wave undergoes per second.
The electron configuration of an atom or ion that is lowest in energy.
Ground State
A quantum of electromagnetic radiation.
The observation that when light of sufficient energy shines on a metal, an electric current is produced.
Photoelectric Effect
A proportionality constant relating the energy and the frequency of a photon, equal to 6.626*10^-34 J/s.
Planck's Constant
A fundamental constant giving the speed at which electromagnetic radiation travels through a vacuum.
2.998*10^8 m/s.
Speed of Light
The principle stated by Werner Heisenberg that it is impossible to know simultaneously the exact position and velocity of a particle; the principle becomes important only for particles of very small mass.
Uncertainty Principle
The distance between any point on a wave and the corresponding point on the next wave, that is, the distance a wave travels during one cycle.