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Ch4 Spectroscopy Pt2

Vocabulary

TermDefinition
Direct Decay when an excited electron transitions down through more than one energy state at a time, producing either UV or visible light
Cascade when an excited electron transitions down through one energy states at a time, producing either UV or visible light
Photon single packet of electromagnetic energy that makes up a particle of EM radiation
Ionization when an atom or molecule has lost one or more of its electrons
Molecule tightly bound collection of atoms held together by their electromagnetic fields
Doppler Shift change in the frequency of a wave due to the Doppler Effect
Radial Velocity component of an object's velocity either coming toward, or moving away from, you
Line Broadening spreading across of a greater wavelength, or frequency range, of spectral lines
Vibration when molecules emit infrared radiation due to shaking back and forth
Rotation when spinning molecules emit radio waves
Density how compact matter is within an object (mass divided by volume)
Mass total matter within an object
Volume amount of space an object takes up
Atomic Spectra characteristic spectrum by which a single element's atom can be recognized (ex: H)
Molecular Spectra characteristic spectrum by which multiple atoms can be recognized (ex: H2)
Nanometer unit of wavelength in 1x10^-9 meters
Angstrom unit of wavelength in 1x10^-10 meters
Created by: john_bailey720
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