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35 Cards in this Set

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  • Back
atomic orbital
a region of space in which an electron in an atom has a 90 percent chance of being located
atomic spectrum
the pattern of frequencies of electromagnetic radiation emitted by the atoms of the element
conceptual model
a representation of a system that helps us predict how the system behaves
effective nuclear charge
the nuclear charge experienced by outer-shell electrons, diminished by the shielding effect of inner-shell electrons
electromagnetic spectrum
the complete range of waves:

gamma rays, x-rays, U.V, Visible light, Infared rays, microwaves, (radar)
atomic orbital
a region of space in which an electron in an atom has a 90 percent chance of being located
atomic spectrum
the pattern of frequencies of of electromagnetic radiation emitted by the atoms of the element
conceptual model
a representation of a system that helps us predict how the system behaves
effective nuclear charge
the nuclear charge experienced by outer-shell electrons, diminished by the shielding effect of inner-shell electrons
electromagnetic spectrum
the complete range of waves:

gamma rays, x-rays, U.V, Visible light, Infared rays, microwaves, (radar)
electron configuration
the arrangement of electrons in the orbitals of an atom
energy-level diagram
drawing used to arrange atomic orbitals in order of energy levels
inner-shell shielding
the tendency of inner-shell electrons to partially shield outer-shell electrons from the nuclear charge
ionization energy
the amount of energy required to remove an electron from an atom
photon
another term for a single quantum of light, a name chosen to emphasize the particulate nature of light
electron configuration
the arrangement of electrons in the orbitals of an atom
energy-level diagram
drawing used to arrange atomic orbitals in order of energy levels
inner-shell shielding
the tendency of inner-shell electrons to partially shield outer-shell electrons from the nuclear charge
ionization energy
the amount of energy required to remove an electron from an atom
photon
another term for a single quantum of light, a name chosen to emphasize the particulate nature of light
physical model
a representation of an object on some convenient scale
principal quantum number "n"
an integer that specifies the quantized energy level of an atomic orbital
probability cloud
the pattern of electron positions plotted over time to show the likelihood of an electron's being at a given position at a given time
quantum
a small, discrete packet of light energy
quantum hypothesis
the idea that light energy is contained in discrete packets called quanta
spectroscope
a device that uses a prism or diffraction grating to separate light into its color components
wave frequency
a measure of how rapidly a wave oscillates
wavelength
the distance between two crests of a wave
principle energy level
areas where there are major concentrations of elements
sub levels
shapes with orientation where elements are found
order of fill (numbers)
1s 2s2p 3s3p 4s3d4p 5s4d5p 6s4f5d6p 7s5f6d7p
order of fill (blanks)
1 1 3 1 3 1 5 3 1 5 3 1 7 5
orbital notation of each sublevel:
s
p
d
f
1
3
5
7
Hund's Rule
before a second electron can be placed in any orbital, all the orbitals of that sublevel must contain at least one electron
AufBau Principle
each added electron is placed in the sublevel of lowest energy (closed to nucleus)