2. 3. 4. 6. 7. fjz KTIOA HOA HOC fiilysaD'fl KIEM TRA crtfa. ri t nAnn Hoc 2008- 2009 ' . ,- ^ : LoP cTINHAN lf Hec pnAn no,Lngc DAr ctIoNG Thdi gian lim bii: 90 phrit 1. Crv sd dO phan biQt hat vi m6 vd vi m6? MQt v$t th6 c6 khOi luqng 0,01 gam chuy6n ilQng theo phuong x v6i vQn tt5c 800 m/s, ' A do t6c ttQ theo phucrng x ld 10-3 %. C6 th6 coi hpt ndy li vi hpt hay sal so cua pne" kh6ng? Gi6i thich sp lai hod hong phdn tu NH3 biiSt ring g6c HNH x6p xi 1070. Gi6i thich t4i sao & cing nh6m Va nhrmg P c6 th6 c6 h6a tri 5 cdn N thi kh6ng? Ning lugng ion h6a thri nhdt ld ndng lugng cAn cung c6p dO thch I electron ra kh6i nguy6n tu o tr4ng th6i cry ban. Dya vdo qui tic Slater hdy tfnh ndng lugng ion h6a thri nhdt ciaHe theo eV. M6 te sg t4o 1i6n ktit cQng h6a tri trong phan tu Oz theo qui thcbfuttti, theo thuyiSt VB vi theo thuyiSt MO bi6t ring trong thUc tC O2ld ch5t thuan tu. Qua d6 cho th6y uu tti6m vd h4n ch6 cria tirng thuytit kfri kh6o s6t li6n ki5t cQng h6a tri. Theo li thuytit vA tucmg tdc dhy giirachc c{p electron, hdy dg ct6an dang hinh hgc ctra 5. i6c phdn flr:ArcE :r: Xi5p dAy cdc cilutft sau theo chidu tdng ddn b6il kinh, gi6i thich: eF-, 11Na+, 8O2-, rN'-, ,rAl'*, nMg2*,rNe. Cho dien ttch hgt nhdn cila cdc ng,tyAn tu ng,ry€n t6 taong {cng td: H(I),He(2), C(6), N(7), O(8), F(9), Ne(l0), Na(l1), Mg([2), Al(13), P(l5), ClQT). Thi sinh khdng tlugc sfr dgng tiri liQu, kO cn bing HTTH. 4b 61' 4? +[ 5d +{ 5l - &1 w-I-I n- Litl,ltt t // ) {$4b 9{ ,ry ,rd ,'$,lO 'to t . tdng ddn b6il kinh, gi6i thich: eF-, 11Na+, 8O 2-, rN&apos ;-, ,rAl'*, nMg2*,rNe. Cho dien ttch hgt nhdn cila cdc ng,tyAn tu ng,ry€n t6 taong {cng td: H(I),He (2) , C(6), N(7), O(8), F(9),. F(9), Ne(l0), Na(l1), Mg( [2) , Al(13), P(l5), ClQT). Thi sinh khdng tlugc sfr dgng tiri liQu, kO cn bing HTTH. 4b 61' 4? +[ 5d +{ 5l - &1 w-I-I n- Litl,ltt t // ) {$4b 9{. 2. 3. 4. 6. 7. fjz KTIOA HOA HOC fiilysaD'fl KIEM TRA crtfa. ri t nAnn Hoc 20 0 8- 20 09 ' . ,- ^ : LoP cTINHAN lf Hec pnAn no,Lngc