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Vree -Ch. 5 Chem Voc

Vree-Ch. 5 Chemistry Vocab

Absorption Spectrum shows the pattern of electromagnetic radiation lines absorbed by atoms of an element which are at their ground state energy level; each element has its own unique absorption spectrum.
Emission Spectrum shows the pattern of electromagnetic radiation lines emitted by atoms of element which have been at an excited state energy level; each element has its own unique emission spectrum.
Electromagnetic Radiation transverse waves that are emitted from electrically charged particles.
Electromagnetic Spectrum complete range of wavelengths which light can have. These include radio, infrared, visible, ultraviolet, x
Electron Cloud Model current model of the atom that describes the allowed energies an electron can have and the most probably locations of electrons around the nucleus.
Energy Level each electron’s fixed amount of energy.
Quantum (of energy) the amount of energy to move an electron from its present energy level to the next higher one.
Excited State an increased energy level of an electron; this is achieved by absorbing a quantum of energy.
Ground State the lowest possible energy of an electron.
Wavelength the distance between a point on one wave and the identical point on the next wave.
Frequency the number of wavelengths that pass one place each second.
Orbital one part of a sublevel; each orbital can hold two electrons.
Valence Electron electrons in the outermost energy level of an atom.
Electron Configuration a representation of the number of electrons of an atom or ion and the orbitals in which they lie.
Sublevel one part of an energy level, each sublevel can hold different numbers of electrons.
Heisenberg Uncertainty Principle it is impossible to know exactly both the velocity and the position of a particle at the same time
Created by: smvree