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W10.ans - -2 CHEMISTRY 114 Spring 2010 Dr Audrey Dell...

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Unformatted text preview: -2- CHEMISTRY 114 - Spring 2010 _ Dr. Audrey Dell Hammerich Worksheet - Week 10 romp at Doses c In } a @1760ka Dongs : Q g u {lacinptéPmWIC/Wkle Wall—l 1. Give the number of radial nodes for each subshell in the fifth shell (n : 5) of a hydrogenic atom. 56 I £30 1:714 brat) 12/31 3—7321 56/ ,Q/‘q "9 O ' Shir/l =73 5FJ£55=7L 2. What is the general trend in the periodic table (period, group) for a) sizes of atoms, cations, anion 6’ 3l%5 Wig , ,1 IE b) ionization energies «,1 c" E ) } 5035 g9 c) electron affinities EA (W) - vuz EN (1) electronegativity ‘23 \L e acidit of oxides . W ) y Wolff}, )IEIW)-Efl(mim33—A _ 3. a) Which has a higher ionization energzgl, a nitrogen atom or an oxygen atom? Why? My 16719.57” lPth’y 3P}, v 13 Aim, at)“ mboW‘m ° 0 Mia Wainé om 8r 0 2 L919 9&2pr 3% (milk V‘s :7 0 has W 16 b) Which has a more negative electron affinity, a sulfur atom or the S‘ ion? Why? 55‘. $063 357/3931“ 3?? 3— MM am ._ am a“ E) 6“,,” 51— W6 Lu ' 9‘W3WBPK3PFESH nimble new 0345 mfgmnw i 4. Give the ground state electron configuration of the following atoms or ions. Use a rare gas , shell to denote core electrons (e. g., [He], [Ar]). a) w We] W“ 5004 W b) (:03+ 2m 3&9 g c) $134+ um um 5s 5. a) Draw Lewis structures for sulfurous acid (H2803) and sulfuric acid (H2S04). b) Do the formal charges follow what you know about the electronegativity of S and O? c) What argu— ments would you advance for a. valence shell expansion about S? (1) Draw the expanded struc- tures. 6) Give the geometry for each and tell whether each has a dipole moment. at) ”£593, Whisk ‘ «Hz/5‘71 Eris; b) Omew EL€Gle>feretW0rfi s V smog-.30 (are)? wk? c3 Pc sermazflw) s Ema Pawn =7 V$E 690°; trap 061) & it :80. vi 0" i 0 kg??? {LP 4 0. EP‘ ., ) ”‘ergvh Hamétom k7 la«o-§to«u W ,?. w l ‘2’ it"s)?“ ' \(t) b H '95 33.5%” "‘ /fi?: 7 4, _ 7’ “ «A Tfi'filfiut’bmp ”£72,anqu Panama/>4, moo”; “’ ‘Fe’mnwawa amour 6. Consider the cyanate ion, OCN‘. a) Draw its three Lewis stfiictures. b) Determine the for— mal charge on all atoms having any. c) Which is the most important resonance structure? Why? Oil boo“ VW’QQ¢H5—Cfl)blb 6m: 5(g) “/(L‘l €;\—=’ - ct- __ ‘f‘fi. ‘1‘ 'F v: , \.-l ’ raceo=w—\b:‘€[1=iiBP n QPP‘ 43 :9—011‘35 &7 3C7-Cvt~3: -- W _.——~ LDDC": [la-'4 731'): RH»? “Jr _(\_ \\\ b74111 1‘3 M0$T u’YtOWLT WNT firs IT HAS 300 WAQM; SWMLflth/yo Mp THE magma/Ne“ We: 15 9:0 m6 mow (flecflzoec-emw’ mom ...
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