A) 1s22s22p63s23p6 B) 1s22s22p63s23p63d44s2
C) 1s22s22p63s23p63d54s1
D) 1s22s22p63s23p63d4 E) 1s22s22p63s23p63d5
242. Mishyakning eng yuqori oksidlanish darajasiga ega bo’lgan ionining elektron konfiguratsiyasini toping.
A)... 3d104s24p3 B)...3p64s2 C)...3p63d10
D)...3d104s24p5 E)... 3d104s24p1
243. Fe0 va Fe3+ ionlari elektron konfigutarsiyalarini ko’rsating.
A)1s22s22p63s23p63d64s2; 1s22s22p63s23p63d10
B)1s22s22p63s23p63d64s1; 1s22s22p63s23p63d5
C)1s22s22p63s23p63d64s2; 1s22s22p63s23p63d5
D)1s22s22p63s23p63d64s2; 1s22s22p63s23p63d9
E)1s22s22p63s23p63d74s1; 1s22s22p63s23p63d5
244. 1s22s22p63s23p6 elktron formulasiga qay-si element atomi yoki ioni muvofiq keladi?
A) Ar, Cl, S+4 B) Ar, Cl+, Ca2+
C) K+, Ca2+, Na+ D) Ar, Cl, Ca2+
E) Cl, Ar, Ca
245. Hg+ va Hg2+ ionlarida elektronlarning soni nechta?
A) 77 va 78 B) 80 va 81 C) 78 va 79
D) 79 va 78 E) 79 va 80
246. Quyidagi qaysi atom yoki ionlar juftida elektronlarga nisbatan protonlar soni ko’proq
A)Na+ va Cl B)K+ va Cl0 C)Cu2+ va Cl
D)Cl va Cu0 E)K+ va Ca2+
247. Elektron formulasiga asoslanib, ionla-nish energiyasi qaysi elementlarda katta bo’lishini aniqlang.
A)...2p5,...3p5 B)...2p2,...3p3 C)...2s1,..3s1
D)...2p3,...3p3 E)...2s2,...3s2
248. Quyidagilardan d-elementni toping
A) Na B) Ca C) Cl2 D) Fe E) O2
249. d-elementlar qatorini ko’rsating.
A) Al,Sc,La B) Ti,Ge,Sn C) Ti,V,Cr
D) La,Ge,Hf E) K,Cu,Ag
250. Tartib qaqami 28 bo’lgan elementning elektron formulasini ko’rsating.
A) ...3d84s1 B) ...4s23d7 C) ...3d84s2
D) ...3d74s2 E) ...3d94s2
251. 3d-pog’onachaga elektronlar joylashishi boshlanadigan va tugallanadigan elementlar tartib raqamini ko’rsating.
A)20;29 B)21;30 C)22; 31 D)23; 32 E)24; 33
252. ...3s23p5 elektron konfiguratsiyaga ega bo’lgan element uchun: 1) davr tartib raqa-mini; 2) energetik pog’onalar bo’yicha elektronlarning taqsimlanishini; 3) valent elektronlarning maksimal sonini ko’rsating
A) III, 2e8e7e, 5 B) IV, 2e2e7e, 4
C) III, 2e8e7e, 7 D) V, 1e8e7e, 6
E) IV, 2e8e7e, 5
253. 5p-pog’onachadan keyin qaysi pog’onacha elektron bilan to’ladi?
A) 6s B) 5d C) 4f D) 4d E) 5s
254. Ushbu ...3s23p63d14s2 elektron konfigu-ratsiya qaysi elementning E4+ ioniga tegishli?
A) Cr B) Co C) Mn D) Fe E) Ti
255. Elektron formulalarga asoslanib, ele-mentlarni elektromanfiyliklari ortib borish tartibida joylashtiring.
1)..2s1; 2)..3s23p4; 3)..2s22p5; 4)..2s22p4
A) 2,4,3,1 B) 1,3,2,4 C) 1,2,4,3
D) 4,3,2,1 E) 3,2,1,4
256. As5+ ionining elektron konfiguratsiyasini aniqlang.
A) 1s22s22p63s23p63d10
B) 1s22s22p63s23p64s24p3
C) 1s22s22p63s23p63d104s24p3
D) 1s22s22p63s23p63d54s24p3
E) 1s22s22p63s23p63d54s24p3
257. Quyidagi orbitallarning qaysi birlari mavjud emas?
A) 1s, 2s B) 2p, 3d C) 3p, 4d
D) 1p, 3f E) 3d, 4f
258. Tartib raqami 34 bo’lgan element atomining energetik pog’onachalari qaysi tartibda to’lib boradi?
A) 1s, 2s, 2p, 3s, 3p, 4s, 4p
B) 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p
C) 1s, 2s, 2p, 3s, 3p, 3d, 4s, 4p
D) 1s, 2s, 2p, 3s, 3p, 4s
E) 1s, 2s, 2p, 3s, 3p, 3d, 4s
259. Tartib nomeri 25 bo’lgan element atomining nechta bo’sh d-orbitali bor?
A) 2 B) 3 C) 4 D) 5 E) yo’q
260. Quyidagi atomlarning energetik pog’o-nalari ichidan metallmaslik xossani kuchliroq ifodalaydiganini ko’rsating.
A) ...3s23p2 B) ...3s23p4 C) ...3s23p6
D) ...3s2 E) ... 4s23d104p3
261. Germaniy atomida elektron bilan to’lgan energetik pog’onachalarning soni nechta?
A) 4 B) 5 C) 6 D) 7 E) 8
262. Elektronlar soni bir xil bo’lgan zarrachalarni aniqlang.
1) Ga+3; 2) As+3; 3) Se; 4) Br+3; 5) Cu+.
A) 1,2 B) 2,3 C) 3,4 D) 4,5 E) 1,5
263. As+5 va As+3 ionlaridagi valent elektronlar sonini toping.
A) 0 va 8 B) 4 va 5 C) 5 va 3
D) 6 va 4 E) 2 va 0
264. Tartib raqami 46 bo’lgan element atomi-ning tashqi elektron qavatida nechta elektron bo’ladi va u qaysi oila elementlariga kiradi?
A) 0,d B) 3,p C) 4,d D) 5s1,s E) 5s2,s
265. I, II va III-VIII guruhlarning asosiy guruhcha elementlari qanday oilalarga kiradi?
A) s va p B) faqat p C) d va f
D) p, d va f E) s, p va d
266. To’rtinchi elektron pog’onada nechta energetik katakcha (yacheyka) bo’ladi va N=2n2 formula bilan qanday zarrachalar soni hisoblab topiladi?
A) 16 ta va elektron B) 32 ta va n, p
C) 5 ta va n D) 7 ta va pozitron
E) 13 ta va elektron
267. Qavatlarning elektronlar bilan to’lib borosh tatibiga binoan 4f-pog’onachadan oldin qaysi energetik pog’onacha elektronlar bilan to’ladi?
A) 5d1 B) 6s2 C) 5d2 D) 4p6 E) 6d3
268. 4f-pog’onacha qaysi energetik po-g’onachadan oldin to’ladi?
A) 5d B) 5p C) 4d D) 4p E) 6s
269. Aton yadrosi tarkibida elektron bo’lmas-ligiga qaramasdan -yemirilishni qanday izohlash mumkin?
A) atomning tashqi energetik pog’onasidan elektroin otilib chiqishi
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