Lecture 10 notes (exam 2 review)

9 1a 1 2a 2 electronaffinitieskjmol 3a 13 4a 14 5a6a

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Unformatted text preview: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p4 1s2 2s2 2p6 3s2 3p6 3d 5 4s2 core [He] [Ne] [Ar] 3d10 [Ar] valence 2s2 2p3 3s2 3p2 4s2 4p4 3d 5 4s2 Note: # of valence e‐ = A group # First Ionization Energies Periodic Trends: Electron Affinities Table 7.9 1A (1) 2A (2) Electron Affinities (kJ/mol) 3A (13) 4A (14) 5A 6A 7A (15) (16) 8A (17) H ‐73 (18) He >0 Li ‐60 N >0 O ‐141 F ‐328 Ne >0 Mg >0 Ca ‐2 Al ‐43 Si ‐134 P ‐72 S ‐200 Cl ‐349 Ar >0 Ga ‐30 Ge ‐119 As ‐78 Se ‐195 Br ‐325 Kr >0 Rb ‐47 The magnets cancel. The atom is diamagnetic C ‐122 K ‐48 Paramagnetism & Unpaired Electrons B ‐27 Na ‐53 Spinning e‐ =tiny magnet. If all e‐ are paired: Be >0 Sr ‐5 In ‐30 Sn ‐107 Sb ‐103 Te ‐190 I ‐295 Xe >0 Was ist das? • pushe...
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This note was uploaded on 03/02/2014 for the course CHEM 101 taught by Professor Multipleprofs during the Spring '07 term at Drexel.

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