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Ch4 Spectroscopy Pt1

Vocabulary

TermDefinition
Spectroscopy study of how atoms absorb and emit electromagnetic radiation
Spectroscope instrument used to view a light source's spectrum
Spectrum separation of light into its component colors
Spectral Line where light in a narrow frequency has either been removed or added from a spectrum
Emission Spectrum pattern of colored spectral lines where light has been added by an element in a hot gas
Continuous Spectrum spectrum from a hot solid where the radiation is distributed over all frequencies with no pattern (ROYGBIV)
Absorption Spectrum pattern of dark spectral lines where light has been removed by an element in a cool gas
Element matter made up of one particular atom, determined by the number of protons in the nucleus
Kirchhoff's Laws three rules governing the formation of different types of spectra
Atom building block of all matter, a nucleus of protons (and neutrons) surrounded by electrons
Bohr Model first theory of the hydrogen atom's structure with electron energy levels
Electron Cloud system of electrons surrounding the nucleus of an atom
Electron State corresponds to the energy level of an electron (a.k.a. an orbital)
Ground State lowest energy level that an electron can have in an atom
Excited State when one of an atom's electrons is in a higher energy orbital than the ground state
Lyman Series hydrogen spectral series of transitions to the lowest energy level of an electron (ground state), emitting UV light
Balmer Series hydrogen spectral series of transitions to the second lowest energy level of an electron (first excited state), emitting visible light
Photoelectric Effect emission of an electron from a metal surface when a photon of EM radiation is absorbed
Electron elementary particle of an atom with a negative electric charge
Proton elementary particle of an atom with a positive electric charge
Neutron elementary particle of an atom with a neutral electric charge (0)
Particle a body with mass but having negligible size
Created by: john_bailey720
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