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Electrons in Atoms

Electrons in Atoms 5.1 and 5.2

electromagnetic radiation a form of energy exhitbiting wavelike behavior as it travels through space.
wavelength the shortest distance betweeen equivalent points on a continuous wave;
frequency the number of waves that pass a given point per second
amplitude the height of a wave from the origin to a crest, or from the origin to a trough.
electromagnetic spectrum all forms of electromagnetic radiation, with the only differences in the type of radiation being their frequences and wavelengths.
quantum the minimum amount of energy that can be gained or lost by an atom
Planck's constant is the symbol for joules the SI unit of energy
photoelectric effect surface when light of a certain frequency shines on the surface
photon a particle of electromagnetic radiation with no mass that carries a quantum of energy
atomic emission spectrum the set of frequencies of the electromagnetic waves emitted by atoms of the element
ground state lowest allowable energy state of an atom
de Broglie equation predicts that all moving particles have wave characteristics
Heisenberg uncertainty principle states that it is not possible to know precisely both the velocity and the position of a particle at the same time
quntum mechanical model of the atom an atomic model in which electrons are treated as waves; also called the wave mechanical model of the atom
atomic orbital a three-dimensional region around the nucleus of an atom that describes an electron's probable location
principal quantum number which the quantum mechanical model assigns to indicate the relative sizes and energies of atomic orbitals.
principal energy level the major energy levels of an atom
energy sublevel the energy levels contained within a principal energy level
Created by: holinessorhell