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Electrons in Atoms

Chapter 5

electromagnetic radiation is a form of energy that exihibits wavelike behavior as it travels through space.
wavelength is the shortest distance between equivalent points on a continous wave
frequency is the number of waves that a pass a given point per second
amplitude is the wave is the wave's height from the origin to a crest
electromagnetic spectrum also called the EM spectrum, encompasses all forms of electromagnetic radiation, with the only differences in the types of radiation being their frequencies and wavelengths
quantam is the minmum amount of energy that can be gained or lost by an atom
planck's constant has a value of 6.626*10-34J*s, where J is the symbol for the joule, the SI unit of energy
photoeletric effect a phenomenom in which photoelectrons are emitted from a metal's surface when light of a certain frequency shines on the surface
photon is a particle of electromagnetic radiation with no mass that carries a quantum of energy
atomic emission spectrum is 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 Brogile equation predicts that all moving particles have wave characteristics
Heisnberg uncertainty principle states that it is fundamentally impossible to know precisely both the velocity and position of a particle at the same time
quantum mechanical model of the atom an atomic model in which electrons are treated as waves; also called the wave mechanical model of the alom
atomic orbital describes the electons probable location
principal quantum numbers that indicate the relative sizes and energies of atomic orbitals
principal energy levels the major energy levels
Created by: Wildcats14