KIM TRA HA 10Bi 1: Nguyn t ca mt nguyn t A c tng s hat proton, ntron, electron la 48, trong s ht mang in gp hai ln s ht khng mang in.Vit cu hnh electron ca nguyn t nguyn t A. Xc nh v tr ca A trong bng h thng tun hon.

p = e = n = 16Bi 2 : X, Y, R, A, B theo th t l 5 nguyn t lin tip trong bng h thng tun hon. Tng in tch ht nhn la 90 (X c s in tch hat nhn nh nht). a.Xac nh X, Y, R, A, B. b.Vit cu hnh electron X2-, Y-, R, A+, B2+. Bi 3 : Mot nguyn t k hiu l R c tng s cc ht proton, ntron, electron bang 24. a) Vit k hiu ht nhn cua nguyen t va gi tn nguyn t , b) Vit cu hnh electron cua nguyn t va ca ion R2 . c) Cho bit trong nguyn t c bao nhiu obital c electron chim gi. Bi 4 : a. Nguyn t Zn c bn knh r = 1,35.10-10m c khi lng nguyn t bng 65 vc. Tnh khi lng ring ca nguyn t Zn. b. Tnh ban knh gn ng cua nguyn t Cu , bit khi lng ring cua Cu l 8,93g/cm3 va khi lng nguyn t ca Cu = 63,5 vC . Mt khac , th tch tht chim bi cc nguyen t ch bng 74% ca tinh th , cn lai l cac khe trng. Cu 5 : Trong t nhin Clo c hai ng v, trong 35Cl (75%). Nguyn t khi trung bnh ca Clo l 35,5. a. Xc nh ng v th 2. b. Tnh % ca ng v trong hp cht NH4Cl, NaClO. Cu 6 : Anion Y- c cu hnh electron lp cui cng l 3p6. a. Xc nh nguyn t Y. Y l kim loi, phi kim, hay kh khim? b. Xc nh nhng nguyn t no c cng cu hnh electron nh Y-.

S GIO DC V O TO

THI TRC NGHIM MN CTNT HTTH LKK PUHH Thi gian lm bi: 60 pht; (50 cu trc nghim) M thi 134

H, tn th sinh:.. S bo danh:. Cu 1: Ho tan hon 5,94 gam hn hp hai mui clorua ca hai kim loi X v Y ( X, Y u thuc nhm IIA) vo nc c 100ml dung dch Z. Cho dung dch Z tc dng ht vi dung dch AgNO3 thu c 17,22 gam kt ta. Lc b kt ta c dung dch M. C cn M c m gam hn hp mui khan. Gi tr ca m l A. 9,20 B. 9,21 C. 9,10 D. 9,12

Cu 2: (H A 2007) Anion X- v cation Y2+ u c cu hnh electron lp ngoi cng l 3s23p6. V tr ca cc nguyn t trong bng tun hon cc nguyn t ha hc l A. X c s th t 18, chu k 3, nhm VIA ; Y c s th t 20, chu k 4, nhm IIA. B. X c s th t 18, chu k 3, nhm VIIA ; Y c s th t 20, chu k 3, nhm IIA. C. X c s th t 17, chu k 3, nhm VIIA ; Y c s th t 20, chu k 4, nhm IIA. D. X c s th t 17, chu k 4, nhm VIIA ; Y c s th t 20, chu k 4, nhm IIA. Cu 3: Theo nh lut tun hon, tnh cht ho hc ca cc nguyn t bin i tun hon theo chiu tng ca A. S oxi ho C. in tch ht nhn nguyn t B. in tch ion D. Nguyn t khi

Cu 4: (H B 2007) Trong mt nhm A (phn nhm chnh), tr nhm VIIIA (phn nhm chnh nhm VIII), theo chiu tng ca in tch ht nhn nguyn t th A. tnh kim loi tng dn, bn knh nguyn t gim dn.

B. tnh kim loi tng dn, m in tng dn. C. m in gim dn, tnh phi kim tng dn. D. tnh phi kim gim dn, bn knh nguyn t tng dn. Cu 5: (C 2007) SO2 lun th hin tnh kh trong cc phn ng vi A. dung dch KOH, CaO, nc Br2. C. dung dch NaOH, O2, dung dch KMnO4. B. H2S, O2, nc Br2. D. O2, nc Br2, dung dch KMnO4.

Cu 6: (H B 2009) Cho cc nguyn t: K (Z = 19), N (Z = 7), Si (Z = 14), Mg (Z = 12). Dy gm cc nguyn t c sp xp theo chiu gim dn bn knh nguyn t t tri sang phi l A. K, Mg, Si, N. B. K, Mg, N, Si. C. Mg, K, Si, N. D. N, Si, Mg, K.

Cu 7: (H B 2008) Cng thc phn t ca hp cht kh to bi nguyn t R v hiro l RH3. Trong oxit m R c ho tr cao nht th oxi chim 74,07% v khi lng. Nguyn t R l A. N. B. S. C. P. D. As.

Cu 8: Cc ng v ca cng mt nguyn t ho hc th chng c c im l A. cng s lp electron C. cng s ht ntron B. cng e ho tr D. cng s ht proton

Cu 9: Khi un nng mui kaliclorat, khng c xc tc th mui ny b phn hu ng thi theo hai phng trnh sau: 1) 2KClO3 =2KCl +3O2 2) 4KClO3 = KClO4 + KCl Bit khi phn hu hon ton 73.5g Kaliclorat th thu c 33.5g Kaliclorua. Vy phn trm khi lng Kaliclorat b phn hu theo 1), 2) l A. 66.67% v 33.33%. C. 44.48% v 45.52%. B. 88.25% v 11.75%. D. 70% v 30%.

Cu 10: Nguyn t khi trung bnh ca R l 79,91; R c 2 ng v. Bit 79R( 54,5%). Nguyn t khi ca ng v th 2 c gi tr l

A. 85

B. 82

C. 81

D. 80

Cu 11: (H B 2007) Trong hp cht ion XY (X l kim loi, Y l phi kim), s electron ca cation bng s electron ca anion v tng s electron trong XY l 20. Bit trong mi hp cht, Y ch c mt mc oxi ha duy nht. Cng thc XY l A. AlN. B. MgO. C. LiF. D. NaF.

Cu 12: (H A 2009) Nguyn t ca nguyn t X c cu hnh electron lp ngoi cng l ns2np4. Trong hp cht kh ca nguyn t X vi hiro, X chim 94,12% khi lng. Phn trm khi lng ca nguyn t X trong oxit cao nht l A. 50,00%. B. 40,00%. C. 60,00%. D. 27,27%.

Cu 13: Nguyn t ca hai nguyn t X v Y ng k nhau trong mt chu k c tng s ht proton l 25. X v Y thuc chu k v cc nhm no? A. Chu k 2, nhm IIIA, IVA C. Chu k 3, nhm IA, IIA B. Chu k 3, nhm IIA, IIIA D. Chu k 2, nhm IIA, IIIA

Cu 14: Nguyn tc no sp xp cc nguyn t trong bng tun hon sau y l sai ? A. Cc nguyn t c sp xp theo chiu tng dn ca in tch ht nhn. B. Cc nguyn t c cng s electron ho tr trong nguyn t c xp thnh mt ct C. Cc nguyn t c cng s lp electron trong nguyn t c xp thnh 1 hng. D. Cc nguyn t c sp xp theo chiu tng dn ca khi lng nguyn t. Cu 15: Cho 10 gam ACO3 tc dng vi dung dch HCl d th thu c 2,24 lt kh CO2(ktc). Cu hnh electron ca A l ( bit A c s ht proton bng s ht ntron) A. 1s2 2s2 2p6 B. 1s2 2s2 2p6 3s2 3p4 C. 1s2 2s2 2p6 3s2 3p64s2 D. 1s2 2s2 2p6 3s2 Cu 16: Nguyn t X c tng s ht p,n,e l 34 v s khi nh hn 24. S ht electron ca X l A. 23 B. 10 C. 11 D. 12

Cu 17: (H A 2008) Hp cht trong phn t c lin kt ion l A. HCl. B. NH4Cl. C. H2O. D. NH3.

Cu 18: Cho 34,25 gam mt kim loi M( ha tr II) tc dng vi dd HCl d th thu c 6,16 lt H2 ( 27,30C v 1atm). M l A. Be (M= 9) B. Ca (M= 40) C. Mg (M= 24) D. Ba (M= 137)

Cu 19: (H B 2007) Trong phn ng t chy CuFeS2 to ra sn phm CuO, Fe2O3 v SO2 th mt phn t CuFeS2 s A. nhn 12 electron. C. nhng 13 electron. B. nhng 12 electron. D. nhn 13 electron.

Cu 20: (C 2007) Trong t nhin, nguyn t ng c hai ng v l v . Nguyn t khi trung bnh ca ng l 63,54. Thnh phn phn trm tng s nguyn t ca ng v l A. 54%. B. 50%. C. 27%. D. 73%.

Cu 21: Ho tan hon ton 0,31 gam hn hp hai kim loi X v Y thuc hai chu k lin tip ca nhm IA vo nc th thu c 0,112 lt kh hiro ( ktc). X v Y l A. K v Rb. B. Li v Na C. Na v K D. Rb v Cs

Cu 22: Mt nguyn t trong nhm VIA c tng s proton, electron v ntron trong nguyn t bng 24. Cu hnh electron ca nguyn t nguyn t l A. 1s22s22p6 B. 1s22s22p4 C. 1s22s22p2 D. 1s22s22p63s23p4 Cu 23: Trong phn t MX2 .Trong M chim 46,67% v khi lng. Ht nhn M c s ntron nhiu hn s proton l 4 ht. Trong nhn X s ntron bng s proton. Tng s proton trong phn t MX2 l 58. CTPT ca MX2 l (bit ZFe = 26, ZS = 16, ZN = 14, Zc = 6, ZO = A. SO2 B. FeS2 C. NO2 D. CO2 Cu 24: Nguyn t nguyn t X c cu hnh electron lp ngoi cng l ( n-1)d5ns1. V tr ca X trong bng tun hon l A. Chu k n, nhm IB C. Chu k n, nhm IA B. Chu k n, nhm VIB D. Chu k n, nhm VIA

Cu 25: (H B - 2003) Tng s ht proton, ntron, electron trong 2 nguyn t kim loi X v Y l 142, trong tng s ht mang in nhiu hn tng s ht khng mang in l 42. S ht mang in ca nguyn t Y nhiu hn ca X l 12. Hai kim loi X v Y l

A. Na v Al.

B. Al v Fe.

C. Ca v Mg.

D. Ca v Fe.

Cu 26: (C 2009) Dy gm cc cht trong phn t ch c lin kt cng ho tr phn cc l A. H2O, HF, H2S. B. O2, H2O, NH3. C. HCl, O3, H2S. D. HF, Cl2, H2O.

Cu 27: Tng s ht p,n,e ca mt nguyn t bng 155. S ht mang in nhiu hn s ht khng mang in l 33. S khi ca nguyn t l A. 150 B. 188 C. 148 D. 108

Cu 28: (C 2008) Nguyn t ca nguyn t X c tng s ht electron trong cc phn lp p l 7. S ht mang in ca mt nguyn t Y nhiu hn s ht mang in ca mt nguyn t X l 8 ht. Cc nguyn t X v Y ln lt l (bit s hiu nguyn t ca nguyn t: Na = 11; Al = 13; P = 15; Cl = 17; Fe = 26) A. Al v Cl. B. Na v Cl. C. Al v P. D. Fe v Cl.

Cu 29: Nguyn t ca nguyn t A v B u c phn lp ngoi cng l 2p. Tng s e hai phn lp ngoi cng hai nguyn t ny l 3. Vy s hiu nguyn t ca A v B ln lt l A. 7 & 9 B. 5 & 6 C. 7 & 8 D. 1 & 2

Cu 30: Cho cc nguyn t 9F, 8O, 15P, 7N. Bn knh nguyn t tng dn theo th t sau A. F < O < N < P N B. P< F < O < N C. N < O < F < P D. F < O < P < FeSO4 + Cu.

Cu 31: (C 2008) Cho phn ng ha hc: Fe + CuSO4 Trong phn ng trn xy ra A. s oxi ha Fe v s kh Cu2+. C. s kh Fe2+ v s oxi ha Cu.

B. s oxi ha Fe v s oxi ha Cu. D. s kh Fe2+ v s kh Cu2+.

Cu 32: (H Cn Th-2001) Mt nguyn t R c tng s ht mang in v khng mang in l 34, trong s ht mang in gp 1,833 ln s ht khng mang in. Nguyn t R v v tr ca n trong bng tun hon l A. Mg 12, chu k 3, nhm IIA. C. Na 11, chu k 3, nhm IA. B. F 9, chu k 2, nhm VIIA. D. Ne 10, chu k 2, nhm VIIIA.

Cu 33: (C A 2009) Trong cc cht: FeCl2, FeCl3, Fe(NO3)2, Fe(NO3)3, FeSO4, Fe2(SO4)3. S cht c c tnh oxi ho v tnh kh l A. 3. B. 2. C. 4. D. 5.

Cu 34: Cho 10,4 g hn hp 2 kim loi ho tan hon ton trong H2SO4 long d thy c 0,672 lt kh thot ra (o ktc). Khi lng hn hp mui sunfat khan thu c s l A. 2 g B. 2,4 g C. 3,92 g D. 3,2 g

Cu 35: X v Y l hai nguyn t thuc hai chu k lin tip nhau trong cng mt nhm A ca bng tun hon, X c in tch ht nhn nh hn. Tng s proton trong hai ht nhn nguyn t ca X v Y l 32. Hai nguyn t X v Y l A. Si (Z =14) v Ar ( Z = 20 ) C. Al (Z =13) v K ( Z = 19 ) B. Na (Z =11) v Ga ( Z = 21 ) D. Mg (Z =12) v Ca ( Z = 20 )

Cu 36: Oxit cao nht ca mt nguyn t c dng R2O5. Hp cht ca n vi hiro trong R chim 91,18 % v khi lng. Nguyn t R l A. Asen B. Photpho C. Antimon D. Nit

Cu 37: (C A 2009) Mt nguyn t ca nguyn t X c tng s ht proton, ntron, electron l 52 v c s khi l 35. S hiu nguyn t ca nguyn t X l A. 18. B. 15. C. 17. D. 23.

Cu 38: Theo nh lut tun hon, trong cng mt nhm A, theo chiu in tch ht nhn tng dn th tnh kim loi ca cc nguyn t ca cc nguyn t tng dn. Trong nhm IA, khi chuyn dn t chu k hai n chu k su, th A. Kh nng nhng electron ca cc nguyn t to thnh anion gim dn. B. Kh nng nhng electron ca cc nguyn t to thnh cation gim dn. C. Kh nng nhng electron ca cc nguyn t to thnh anion tng dn. D. Kh nng nhng electron ca cc nguyn t to thnh cation tng dn. Cu 39: (H A 2008) Bn knh nguyn t ca cc nguyn t: 3Li, 8O, 9F, 11Na c xp theo th t tng dn t tri sang phi l A. F, Na, O, Li. B. Li, Na, O, F. C. F, O, Li, Na. D. F, Li, O, Na.

Cu 40: (C 2007) Cho cc nguyn t M (Z = 11), X (Z = 17), Y (Z = 9) v R (Z = 19). m in ca cc nguyn t tng dn theo th t A. Y < M < X < R. Y. B. R < M < X < Y. C. M < X < Y < R. D. M < X < R