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chapter 5 -1

QuestionAnswer
electromagnetic radiation a form of energy that exhibits wavelike behavior as it travels through space.
wavelength the shortest distance between equivalent points on a continous wave.
frequency the number of waves that pass a given point per second.
amplitude the waves height from the origin to a crest, or from the origin to the trough.
electromagnetic spectrum encompasses all forms of electromagnetic radiation, with the only differences in the types of radiation being their frequencies and wavelengths.
quantum the minimum amount of energy that can be gained or lost by an atom.
planck's constant h, which has a value of 6.626 X 10^-34 j*s, where j is the symbol for the joule.
photoelectric effect electrons are emitted from a metal's surface when light of a certain frequency shines on a surface.
photon a particle of electromagnetic radiation with no mass that carries a quantum of energy.
atom emission spectrum the set of frequencies of the electromagnetic waves emitted by atoms of the element.
ground state the lowest allowable energy state of an atom
de Broglie equation predicts that all moving particles have wave characteristics.
heisenberg uncertainty principle it is fundamentally impossible to know precisely both the velocity and position of a particle at the same time.
atomic orbital a 3D region around the nucleus
principal energy levels atoms major energy levels
principal quantum numbers which the quantum mechanical model assigns to indicate the relative sizes and energies of atomic orbitals.
energy sublevel the energy levels contained within a principal energy level.
Created by: whitethunduh
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