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10 Cards in this Set
- Front
- Back
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wavelength
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distance between two crests
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frequency
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# of crest per second
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speed of light
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c=3.00*10^8 m/sec c=wavelength*frequency
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quanta
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packets of energy
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E=hv
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h=Plancks constant v=frequency
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Bohrs equation
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delta E=(-2.18*10^-18)(_1_ - _1_)
n(final)^2 n(initial)^2 where n=principle quantum # |
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Bohrs three postulates
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-only orbits w/ certain radii allowed
-orbits w/ certain energies -electrons "jump" from one to another by absorbing or emitting photons |
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ground state
excited state |
n=1
n>1 |
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n
l m(p) m(s) |
n=principle quantum #, values 1-7,size of orbital
l=angular momentum quant.#, values 0-(n-1), shape of orbital m(p)=magnetic quant.#,values -1 to 1, direction of orbital m(s)=spin quant. #, +1/2 or -1/2 |
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first 20 electron configurations
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Period 1
-Hydrogen 1-- 1s1 -Helium 2 --1s2 Period 2 Lithium 3 --1s2 2s1 Beryllium 4--1s2 2s2 Boron 5--1s2 2s22p1 Carbon 6--1s2 2s22p2 Nitrogen 7 1s2 2s22p3 Oxygen 8 1s2 2s22p4 Fluorine 9 1s2 2s22p5 Neon 10 1s2 2s22p6 Period 3 Sodium 11--1s2 2s22p63s1 Magnesium 12--1s2 2s22p63s2 Aluminum 13 1s2 2s22p63s23p1 Silicon 14--1s2 2s22p63s23p2 Phosphorus 15 1s2 2s22p63s23p3 Sulfur 16 1s2 2s22p63s23p4 Chlorine 17 1s2 2s22p63s23p5 Argon 18 1s2 2s22p63s23p6 Period 4 Potassium 19--1s2 2s22p63s23p64s1 Calcium 20 1s2 2s22p63s23p64s2 |
