chm151-8solns - 8.1 P 1s22s22p63s23p3 1s 2s 2p 3s 3p...

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8.1 P 1 s 2 2 s 2 2 p 6 3 s 2 3 p 3 ↑↓ 1 s 2 s 2 p 3 s 3 p ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ Phosphorus is in Group 5A and has five electrons in its outer shell. Cl 1 s 2 2 s 2 2 p 6 3 s 2 3 p 5 ↑↓ 1 s 2 s 2 p 3 s 3 p ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑↓ ↑ Chlorine is in Group 7A and has seven electrons in its outer shell. 8.3 Cr 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 3 d 5 4 s 1 Fe 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 3 d 6 4 s 2 8.15 (a) Mn [Ar] 3 d 4 s ↑↓ (b) Mn 2+ [Ar] 3 d 4 s (c) Yes, the +2 ion is paramagnetic. (d) The ion has five unpaired electrons. 8.17 (a) m s can only have values of ± 1 / 2 m s = + 1 / 2 (b) when l = 1, m l can only have values of 0, ±1 m l = 0 (c) the maximum value of l is ( n – 1) l = 2 8.20 (a) 18 electrons (b) 10 electrons (c) 1 electron (d) none; when l = 0, m l can only have a value of 0 8.25 C < B < Al < Na < K 8.28 (a) Cs > Rb (b) O 2– > O (c) As > Br 8.31 (a) Na (b) O (c) Na < Mg < P < O
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This note was uploaded on 10/05/2008 for the course CHEM 151 taught by Professor Staff during the Spring '08 term at University of Arizona- Tucson.

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chm151-8solns - 8.1 P 1s22s22p63s23p3 1s 2s 2p 3s 3p...

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