1. Ikki valentli element oksidining strukturasini ko`rsating?
Download 37.15 Kb.
|
XIMIYA 6.MAY
|
1. Ikki valentli element oksidining strukturasini ko`rsating? 2. Uch valentli element oksidi tarkibida nechta atom bo`ladi? A) 5 B) 2 C) 7 D) 3 3. Ikki valentli element oksidi tarkibida nechta atom bo`ladi? A) 5 B) 2 C) 7 D) 3 4. Besh valentli element oksidi tarkibida nechta atom bo`ladi? A) 5 B) 2 C) 7 D) 3 5. “Magnetit” nechta atomdan tashkil topgan. (Fe3O4) A) 9 B) 10 C) 15 D) 7 6. Suv molekulasida kislorod atomining massa ulushini aniqlang. A) 11.11 B) 56 C) 88.89 D) 80 7. Pb atomining protonlar sonini aniqlang. A) 14 B) 82 C) 107 D) 77 8. Bh atomining protonlar sonini aniqlang. A) 14 B) 82 C) 107 D) 77 9. Ir atomining protonlar sonini aniqlang. A) 14 B) 82 C) 107 D) 77 10. Oxaktosh tarkibida kalsiy atomining massa ulushini aniqlang. A) 12 B) 48 C) 40 D) 52 11. Rn atomining neytronlar sonini aniqlang. A) 45 B) 136 C) 81 D) 32 12. Suv molekulasida vodorod atomining massa ulushini hisoblang. A) 88.89 B) 56 C) 11.11 D) 80 13. Co atomining neytronlar sonini aniqlang. A) 45 B) 136 C) 81 D) 32 14. 25. Yadrosi tarkibida 49 ta protoni mavjud bo`lgan atomning yadrosi atrofida nechta elektron harakatlanadi? A) 49 B) 13 C) 88 D) 51 15. Atom yadrosi atrofida 42 ta elektron harakatlanishi ma`lum bo`lsa, ayni yadro tarkibidagi neytronlar sonini aniqlang. A) 50 B) 54 C) 61 D) 118 16. Xlor atomining proton va elektronlar soni yig`indisini toping? A) 30 B) 42 C) 34 D) 52 17. Oltin atomining yadrosi tarkibidagi zarrachalar soni yig`indisini toping. A) 48 B) 131 C) 52 D) 197 18. Yadrosi tarkibida 8 ta neytroni bo`lgan, elektron buluti 8 ta elektrondan tashkil topgan elementning atom massasi nechaga teng. A) kislorod B) marganes C) fosfor D) kaliy 19.Sizga E+3 ioni berilgan, bundan nimani tushunsa bo`ladi? A) element atomi 3 ta elektron bergan B) element atomi 3 ta elektron olgan C) element atomi 3 ta proton bergan D) element atomi 3 ta neytron olgan 20. Sizga E+ ioni berilgan, bundan nimani tushunsa bo`ladi? A) element atomi 1 ta elektron olgan B) element atomi 1 ta elektron bergan C) element atomi 1 ta proton bergan D) element atomi 1 ta neytron olgan Download 37.15 Kb. Do'stlaringiz bilan baham: 
|