orbital-shape-orientation

orbital-shape-orientation - Shapes and Orientations of...

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Shapes and Orientations of Orbitals
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Periodic table arrangement the quantum theory helps to explain the structure of the periodic table. n - 1 indicates that the d subshell in period 4 actually starts at 3 (4 - 1 = 3). s (n) d (n - 1) p (n) 1 2 3 4 5 6 7 f (n -2)
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Periodic table and quantum theory The 2, 6, 10, 14 columns of the periodic table correspond to s (l=0, m l =0), p (l=1, m l = -1,0,1), d (l=2, m l = -2,-1,0,1,2) and f (-3,-2,- 1,0,1,2,3) See fig. 6.21 (pg. 208) and fig. 6.22 (pg. 209) Note that electron configurations are true whether we are speaking of an atom or ion: 1s 2 2s 2 2p 6 describes both Ne and Na + Q – based on figure 6.22 what are the shorthand electron configurations for Br , Sn, Sn 2+ , Pb? A – [Ar]4s 2 3d 10 4p 6 , [Kr]5s 2 4d 10 5p 2 ,
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Unusual electron configurations Look at your value for Cu ([Ar]4s 2 3d 9 ). The actual value for Cu is [Ar]4s 1 3d 10 why? The explanation is that there is some sort of added stability provided by a filled (or half- filled subshell). Read 6.8 (pg. 207 - 8)
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orbital-shape-orientation - Shapes and Orientations of...

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