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22 Cards in this Set
- Front
- Back
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Heinsberg Uncertainty principle
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It is impossible to determine both position and veolocity of an electron or any other particle at the same time
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Schrodinger wave equation
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give a probability of finding an electron and its velocity at a given place around the nucleus
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Principal Quantum number
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n, all possible values, indicates main energy level occupied by the elctron shell
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total number of orbitals in a shell
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n^2
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Angular Momentum Quantum number
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l, indicates shape of orbital, diff shapes l=0->l=n-1
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Magnetic Quantum numb
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m, orientation,
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Spin number
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s +-.5
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DeBroglie
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matter exhibits wave-like properties (dual particle-wave) nature
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Characteristics of waves
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Interference: interaction of waves travelling thru the same medium
Diffraction:Bending of waves |
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Characteristics of Particles
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1)Photo electric effect
2)Emission of light by hot objects |
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Speed of light
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3*10^8 m/s
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visible spectrum
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400-700 nm
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wavelt
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llamada, distance between crests (tops),troghs(bottoms)
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frequency
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numb of waves that pass a given pt per second (V thing)
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speed emr
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how fast a given peak is moving thru space
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Planck (add on)
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said quantized nrg
e=hv h= constant |
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Alpitude
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distance from middle of wave to peak
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Hz
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one wave/s
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photo electric effect
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emission of electrons from a metal when lite shines on it.
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Afbau's Principle
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Electrons tend to occupy the lowest lvs first
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Hund's Rule
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Pairing of electrons in the orbitals of the same energy does not occur until every orbital of the SAME energy has at least 1 electron
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Pauli Exclusion Principle
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No 2 electrons within an atom can have all 4 quantun numbers the same
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