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26 Cards in this Set

  • Front
  • Back
Electromagnetic radiation
visible light, x-rays, microwaves, radio waves, etc.
Frequency (v, nu)
Number of cycles per second (Hz)
Wavelength (lambda)
Distance between wave peaks
Speed of light formula
c = v * (lambda)
The phenomenon that occurs when a wave passes from one medium into another; the wave is bent at an angle
The phenomenon in which a wave bends around the edge of an object
Quantum number
A positive integer 'n' used in Planck's formula of blackbody radiation
Plank's constant
h = 6.626 x 10^(-34) (J)(s)
Quantum (noun)
a "packet" of energy
a "particle" of light
Lines spectrum
A series of fine lines of individual colors separated by colorless (black) spaces
Stationary states
Certain allowable energy levels, associated with a fixed circular orbit of the electron around the nucleus
de Broglie wavelength
(lambda) = (h)/(m * u)
states that matter behaves as though it moves in a wave
Heisenberg Uncertainty Principle
Priciple which states that it is impossible to know simultaneously the exact position and momentum of a particle
Schrödinger equation
The basis for the quantum-mechanical model of the hydrogen atom, describing an atom that has certain allowed quantities of energy due to the allowed wavelike motion of an electron whose exact location is impossible to know
Quantum mechanics
a field which examines the wave motion of object on the atomic scale
Electron density diagram
predicts the probability that an electron is at a particular point
Probability contour
shows the volume within which the electron of the hydrogen atom spend 90% of its time
principal quantum number (n)
a positive integer that indicates the relative SIZE of the orbital and therefore the relative DISTANCE FROM THE NUCLEUS of the peak in the radial probability distribution plot.
angular momentum quantum number (l)
integer from 0 to n-1, related to the SHAPE of the orbital
magnetic quantum number (m (sub)l)
and integer from -l through 0 to +l; describes the ORIENTATION of he orbital in the space around the nucleus
Levels (shells)
given by the n value
Sublevels (subshells)
Designate the orbital shape
s Orbital
Spherical shape
p Orbital
d Orbital
cloverleaf shape