One Week of Notes for 9/21-9/25
One Week of Notes for 9/21-9/25 CH 101
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This 5 page Class Notes was uploaded by Rani Vance on Saturday September 26, 2015. The Class Notes belongs to CH 101 at University of Alabama - Tuscaloosa taught by a professor in Fall 2015. Since its upload, it has received 28 views. For similar materials see General Chemistry in Chemistry at University of Alabama - Tuscaloosa.
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Date Created: 09/26/15
Chemistry 101 Notes 921925 Professor Paul Rupar 921 Chapter 4 continued 2 Sublevel Energy Splitting in Multiple Electron Atoms in a single electron system energy of the same value 11 are the same ex Energy of 2s is the same as the energy of 2p this is not the case with multielectron systems What factors in uence how an electron interacts with the nucleus number of protons Columb s law electron energy transfer shielding CXI quot Jll atquot H if quoti39 L39il il ti39i j UWHM Mill L ml im rr FF E 11793 h a F gamma 39 LS Ell HIS gamma at l f n HIE WHEN5 Electron Penetration penetration of the 4th and higher energy levels is strong enough that their s orbitals are in lower energy levels than the previous energy levels Filling Orbitals with Electron Pauli Exclusion Principle no two electrons have the same set of four quantum numbers and only two electrons per orbital four quantum numbers n 1 m1 mS Spin Aufbau Principle fill electrons into the lowest energy orbital Hund s Rule When filling orbitals that have the same energy place one electron in each orbital before pairing electrons 6X 92315 Chapter 4 continued 2 Valence Electrons the electrons in all the sublevels With highest principle electron shell are called valence electrons electron in lower energy shells are called core electrons most chemistry is determined by valence electrons ex determine the valence electrons for nitrogen and sulfur F39Jvir IF1 1i quotquot Luquotquot quot1 L I39IJLlf mnrml ii 39139v39 r n r Mr J i I I in Iw1 39a In I 1 quotI il391 ir 39quotlquotui 39li Ji39 I u I u hauling 1 Wm a II n Jill mu Inn quot1 IH Lip firHigh a39 VINEl ill r 1 MIL s I 7 39539 HM 391 39n f H5 I39iua39 I in 3 h J My J amuse HT i39w39f39w menu Ialrr ma 2E1 iii 5139 1 P Ifquot quotI I 3 iii i39jlri EM BEE iv 39 ex 34 h z 39 ELEM Er r M 35 5p HE Ill IF li i1 m l 39fsl39f l39 w H 53 I u in and 2 d3 ei i9HIETJI EHJIJT T liillx Eli rm54 21 TEE Mn mm a wm s n Eill39r r li IFI I39J39quotLquot 31I139r1rrwr mg slmnw Firm I 1E rl tlr hlihg 5f Mailquot Iquot MMIFMH lm 39 39E39 quotMiran Ln 17 E39J 139lviilquotiLquotL fp fllj m Emlrlrimj 115 39 139 Properties and Electron Con guration 39 I gmME 3139quot 95 u M at H39PC1i39liu 39 LEIELEE J MENlb NM 3 J w l 39 39 Lair1H7 EVE Emil i r If 1 I v i 533 I533 malts 39 39s 3 T1151 1 EFF I J atHm quot l r l r aims 5 2w are In mm j i39JW 1 15 AF quot39 39 WWML mr IFE MIMWWIL 7L 39 39iE SFiJ Ear M0531 Isl 39 7145 55 5F i WitM new it ME gt I JPF lit UW39WJ39 I quotT V 39Ij vi 39 a 395quot lt u s 7 iw 39 1 J l 39 P quot quot l z E r h 9 E 7quot 4L 39 5 e1ements in the same column have similar properties chemistry of atom is determined by valence electrons Eight Valence Electrons if you have 8 valence electrons you are very happy and unreactive no chemistry in noble gases 924 Recitation Electron Spin property of an electron and its charged particle Ordering of Orbitals ls 2s 2p 3s 3p 4s 3d 925 Clicker Question What is the ground electron con guration state of Ca Answer Ar Halogens One electron away from being a noble gas Electron configurations of main group anions in their ground state anions for when atom gains electrons
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