PHY102formulasheet

PHY102formulasheet - Ch. 28: Atomic Physics Bohr's Model...

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Unformatted text preview: Ch. 28: Atomic Physics Bohr's Model Angular (orbital) momentum h mv ( r ) = no w/ = ; n=1,2,3,..... 2 The electron in an excited atom jumps from higher to lower emitting the photon. n hf = Ei - E f ( f = c ) = 13.6eV ( 1 1 - 2) 2 ni nf En = -13.6eV ( n = 1,2,3,....) n2 rn =n 2 a 0 ( a 0 =0.529 - m) 10 10 1 1 1 = RH 2 - 2 ni n f 2r = n = n h h h =n (mvr = n ) p mv 2 Quantum numbers > numbers corresponding to some physical state 1. n: Principal quantum number > energy state (n=1,2,3,.....) 2. l: orbital quantum numbers > orbit the e- is in (l= 0 to n-1) 3. magnetic orbital quantum number: me =-l, -l+1,......0,....,l-1,l 4. magnetic spin quantum number ms= or - (Maximum number of electrons that lth sub-shell can hold)= 2(2l+1) Ch. 27: Quantum Physics ...
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This test prep was uploaded on 04/08/2008 for the course PHY 102 taught by Professor Luo during the Spring '08 term at SUNY Buffalo.

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