1189_Physics ProblemsTechnical Physics

1189_Physics ProblemsTechnical Physics - 530 P42.36 Atomic...

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530 Atomic Physics P42.36 (a) For electron one and also for electron two, n = 3 and A = 1. The possible states are listed here in columns giving the other quantum numbers: electron m A 111111111100000 one m s 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 electron m A 1 0 0 –1 –1 1 0 0 –1 –1 1 1 0 –1 –1 two m s 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 electron m A 00000 1 1 1 1 1 1 1 1 1 1 one m s 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 electron m A 110 1 1 1100 1 1 two m s 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 There are thirty allowed states, since electron one can have any of three possible values for m A for both spin up and spin down, amounting to six states, and the second electron can have any of the other five states. (b) Were it not for the exclusion principle, there would be 36 possible states, six for each electron independently. P42.37 (a) n + A 1234567 subshell 1 s 2 s 2 p , 3 s 3 p , 4 s 3 d , 4 p , 5 s 4 d , 5 p , 6 s 4 f , 5 d , 6 p , 7 s (b) Z = 15 : Filled subshells: 1223 ssps ,,, (12 electrons) Valence subshell: 3 electrons in 3 p subshell Prediction: Valence =+ 3 or –5 Element is phosphorus,
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This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .

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