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Vocabulary

5.1 & 5.2

QuestionAnswer
Electromagnetic radiation A form of energy exhibiting wavelike behavior as it travels through space.
Wavelength The shortest distance between equivalent points on a continous wave; is usually expressed in meters, centimeters, or nanometers.
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 Includes 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 `6.626x10^-34 (J=Joule)
Photoelectric effect A phenomenon in which photoelectrons are emitted from a metal's 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 Set of automatically emitted frequencies from the electromagnetic waves.
Ground state An atoms lowest allowable energy state.
De Broglie equation Predicts that all moving particles have wave characteristics and relates each particle's wavelength to its freqency, its mass, and Planck's constant.
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.
Quantum mechanical model of the atom Eectrons are treated as waves.
Atomic orbital Describle the electrons propable locations.
Principal quatum numbers Indicate the relative sizes and energies of orbitals.
Principal energy levels An atoms major energy levels.
Energy sublevels The energy levels contained within a principal energy level
Created by: MizzGhettoPhr3sh
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