L09S09_ManyEAtomsIonizSpin 02-09-09

L09S09_ManyEAtomsIonizSpin 02-09-09 - CHEM 1A...

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CHEM 1A L09: "ManyEAtomsIonizSpin" © 2004 M. Kubinec, A.Pines 1 L09-1 © A.Pines,M.Kubinec UCB L9-5 H-Atom, One Atom, One -Electron Electron Ions Ions l = 0 ( 0 ( s) y z x 2s 2s Radial Radial Node n = 1 n = 2 1s 1s + m l = 0 l l = 0 ( 0 ( s) m l = 0 + - © A.Pines,M.Kubinec UCB L9-6 n = 2 = 2 l = 1 ( = 1 ( p) n = 3 = 3 l = 0, 1, 2 = 0, 1, 2 3s, 3p, 3d 3s, 3p, 3d Orbitals Orbitals 2p y 2p 2p z 2p 2p x - + - + - + Angular Node m l = -1, +1 1, +1 m l = 0 = 0 L09-2 Summary Summary © 2004 M.Kubinec L10-10 3p Multi -Electron Atoms, Ions Electron Atoms, Ions =0 =0 4s 3s 2s 3d E(3d 3d ) > E(4s 4s ) E(2p 2p ) > E(2s 2s ) 1s 1s 2s - + 2p 2p 4p 4p 2p =1 =2 1s 1s Shielding © 2004 M.Kubinec L10-9 Ionization Energies, Shielding Ionization Energies, Shielding 3 1 2 H IE = R Z 2 n 2 5248 1312 Many -e - system eff 2372 IE 3 1 2 He (1s 1 2p 1 ) 328 1 © 2004 M.Kubinec, A. Pines L09-3 E= E= Energy of Transitions Energy of Transitions R = 2.18 x 10 = 2.18 x 10 -18 18 J N A R = 1312 kJmol = 1312 kJmol -1 E = h ν E n = R -Z 2 n 2 R -Z 2 n f n f 2 1 n i n i 2 1
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CHEM 1A L09: "ManyEAtomsIonizSpin" © 2004 M. Kubinec, A.Pines 2 © 2004 M.Kubinec, A. Pines
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L09S09_ManyEAtomsIonizSpin 02-09-09 - CHEM 1A...

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