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Quantum Theory of An Atom


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N (orbital)
4 (orbital)
M (orbital)
3 (orbital)
F (subshell)
3 (subshell)
Speed of Light Constant
C= 3.00x 10^8 m/s
A continuously repeating change or oscilliation in matter or a physical field
a property of waves in which the waves spread out when they encounter an obstruction or small source through a hold
enegy change equation
Ei= Rh(1/nf^2- 1/ni^2)
K (orbital)
1 (orbital)
Transition between energy levels
An electron in an atom can change energy only by going from one energy level to another energy level
Energy of Photons equation
Angular Momentum Quantum Number (L)
This quantum number distinguishes orbitals of a given n having different shapes; it can have any integer value from 0 to n-1.
Plancks constant
h= 6.626 x 10^-34 J S
principal quantum number (N)
this quantum number is the one on which the energy of an electron in an atom principally depends; it can have an positive vaule: 1, 2, 3, and so on.
Color of Shortest wavelength
Blue Violet
Photoelectric effect
the ejection of electrons from the surface of a metal or from another material when light shines on it
lamda- the distance between any two adjacent identical points of a wave
Line Spectrum
a spectrum showing only certain colors or specific wavelengths of light
Rydbergs constant
2.179 x 10 ^-18 J
p (subshell)
1 (subshell)
Uncertainty Principle
A relation that states that the product of the uncertainty in position and the uncertainty in momentum of a particle can be no smaller then plans constant divided by 4 pi.
Electromagnetic Radiation
Visible light, x rays, and radio waves are all examples of this type of light
Magnetic Quantum Number (ml)
This quantum number distinguishes orbitals of given n and L- that is, of given energy and shape but having a different orientation in space; the allowed values are the integers from -L to + L.
Electromagnetic Spectrum
the range of frequencies or wavelengths of electromagnetic radiation
Thomas Young
showed that light, like waves, could be diffracted
Wave- Particle Duality
Wave and particle pictures of light should be regarded as complementary views of the same physical entity.
D (subshell)
2 (subshell)
Louis de Broglie
Reasone that if light exhibits particle aspects, then perhaps particles of matter show characteristics of waves under the proper circumstances
Max Planck's theoretical formula
A formula that exactly describes the intensity of light of various frequencies emitted by a hot solid at different temperatures.
Albert Einstein
responsible for the discovering the photoelectric effect
Spin Quantum Number (ms)
This quantum number refers to the two possible orientations of the spin axis of an electron; possible values are +1/2 and -1/2.
Quantum Mechanics
Aka Wave mechanics the branch of physics that mathmatically describes the wave properties of of submicroscopic particles
de Broglie Relation
Lamda= h/ m(mass)v
Energy level Postulate
An atom itself can only have specific total energy values
atomic orbital
a wave function for an electron in an atom
Energy levels
specific energy values in an atom
Continuous spectrum
a spectrum containing light of all wavelengths
S (subshell)
0 (subeshell)
L (orbital)
2 (orbital)
Speed of Light equation
C= V Lamda
G (subshell)
4 (subshell)
(V) the number of wavelengths of that wave that pass a fixed point in one unit of time
Isaac Newton
believed that light consisted of a beam of particles
Color of longest wavelength

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