1. Kvant sonlar qaysi zarrachaga tegishli? A atom b proton c neytron d elektron
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Variant – 2005 yil.
1. 238 U → 2α + 3β + E reaksiyasida hosil bo‟lgan elementni ko‟rsating. A) 230
Es B) 233
Pa C) 230
Pa D) 230
Th E) 230
At
2.
40 Ca atomiga neytron yog‟dirildi, reaksiya natijasida proton ajralib chiqdi. Shu reaksiyada hosil bo‟lgan element izotopini belgilang. A) 40
41 K C) 40 Se D) 40 Ar E) 41 Cu
3. Quyidagi o‟zgarishda qanday radiaktiv yemirilish yuz berganini aniqlang.
A) β + B) hv C) α D) γ E) β – 4. Qisqartirilgan shaklda berilgan quyidagi tenglamadagi “X” ni aniqlang. X [α,D] 34 Cl A) 35 Cl B) 28 Si C) 32 S D) 40 Ar E) 31 P
5. 238 U dan 226 Ra hosil bo‟lishida yadro qancha “α” va “β – ” zarracha yo‟qotadi? A) 3α va 3β – B) 4α va 1β – C) 3α va 2β –
– E) 2α va 3β –
238 U,
235 U va
232 Th izotoplariga tegishli ravishda 8, 7 va 6 ta α- zarracha yo‟qotishidan hosil bo‟lgan izotoplarning massa sonini toping. A) 205; 206; 207 B) 207; 207; 207 C) 206; 207; 208 D) 206; 208; 208
7. O‟zgarishlar ketma-ketligidagi “X 1 ” va “X
2 ” zarrachalarni toping. 61 Ni + 1 H → X 1 → X 2 + 1 n A)
63 Cu -
64 Cu B) 62
63 Cu C) 62
61 Cu
D) 62 Cu- 62 Cu
Ushbu yadro reaksiyasi natijasida 18,4 mg toriy hosil bo‟lsa, qancha elektron ajralib chiqqan? A) 1,2∙10 20 B) 3,01∙10 21
C) 9,63∙10 19
D) 9,16∙10 20
2. (102-20). 232 Pu → xα + y + β + 216 Bi + 2hv Ushbu yadro reaksiyasida 23,2 mg plutoniy yemi-rilgan bo‟lsa, necha dona pozitron hosil bo‟lgan? A) 18,06 ·10 19
B) 26,53 ·10 19 C) 10,53 ·10 20
D) 18,06 ·10 20
3. (103-20). Quyidagi yadro reaksiyasida 9,44 mg uran reakslyaga qatnashib 12.04 ∙10 19 ta neytron ajralsa, hosil bo‟lgan izotopni ko‟rsating. 236 U + 17 O → A + x 1 n + 7hv A) eynshteyniy-249 B) fermiy-248 C) berkliy-248 D) fermiy-257
257 Lr + x + β + y 1 n Ushbu yadro reaksiyasi asosida 10,28 mg lourensiy va 16,85 ·10 19
dona neytron hosil bo‟ldi. Md izotopining nisbiy atom massasini aniqlang. A) 257 B) 256
C) 258 D) 254
5. (105-20). 238 U → xα + y – β + 218 Rn + 10hv Ushbu yadro reaksiyasida 952 mg uran yemi-rilgan bo‟lsa, necha dona elektron hosil bo‟ladi? A) 45,43 ∙10 18 B) 36,12 ∙10 20 C) 10,53 ∙10 22
20
253 Es + 2α → x 1 n + y + β + 256 Md Ushbu yadro reaksiyasi asosida 10,12 mg eynshteyniy parchalanganda necha dona neytron hosil bo‟ladi? A) 34,45·10 20 B) 12,04·10 19 C) 8,53·10 18 D) 13,28·10 21
256 Es → Cm + xα + y - β + 9hv Ushbu yadro reaksiyasi asosida 12,54
mg eynshtey-niy izotopi parchalanganda 14,86 ·10 19
dona elektron ajralsa, reaksiya natijasida olingan kyuriy izotopining nisbiy atom massasini ko‟rsating.
B) 237 C) 240
D) 234
. Quyida berilgan yadro reaksiyasi asosi-da 54,8 mg uran izotopi parchalanishida 11,09·10 20 dona neytron ajralgan bo‟lsa, hosil bo‟lgan aktiniy izotopining nisbiy atom massasini aniqlang. 238 U → Ac + x 1 n + y + β A) 230
B) 235 C) 232
D) 234
223 Fr → 203 Tl + xα + y - β Ushbu yadro reaksiyasida 4,47·10 19 dona electron hosil bo‟lsa, reaksiyada parchalangan fransiy miqdorini (mg) hisoblang. A) 4,14
B) 5,6 C) 6,34
D) 3,9
223 Fr → 203 Tl + xα + y - β Ushbu yadro reaksiyasida x va y qiymatlarini ko‟rsating. A) 5; 4 B) 7; 4
C) 8; 3 D) 6; 3
11. (111-20). 84 mg protaktiniy parchalanganda 234 Pa → Pb + xα + y - β 64,83 ·10 19
dona elektron hosil bo‟lsa, reaksiya natijasida olingan qo‟rg‟oshinning nisbiy atom massasini toping. A) 212
B) 210 C) 211
D) 209 12. (112-20). 203 Po + 5α → x + β + y 1 H + 215 Bi Ushbu yadro reaksiyasi asosida 84,28 ·10 19 dona pozitron ajralgan bo‟lsa, reaksiyada qatnashgan poloniy izotopining miqdorini (mg) toping.
A) 102,8 B) 94,7
C) 83,6
D) 75,2 13. (113-20). Plutoniy-243 o‟zidan 5α, 4 – β, 3n va X izotop hosil qilib parchalansa, olingan yangi izotopdagi neytronlar sonini ko‟rsating. A) 132
B) 134 C) 135
D) 130 14. (114-20). 240 Am + 19 Ne → A + x 1 n + 8hv 12 mg ameritsiy reaksiyaga kirishib 15,05·10 19 dona neytron ajralgan bo‟lsa, hosil bo‟lgan izotopni aniqlang. A) nilsboriy-254 B) lourensiy-250 C) nilsboriy-260 D) kurchatoviy-261
228 Ra → Po + xα + y 1 n 4,56 mg radiy parchalanganda 36,12 ·10 18 ta neytron hosil bo‟lsa, reaksiya natijasida olingan poloniy izotopi yadrosidagi neytronlar sonini ko‟rsating. A) 133
B) 135 C) 127
D) 129
208 Pb + xα + y - β Protaktiniy izotopi parchalanganda 41,6 mg qo‟rg‟oshin va 6,02 ·10 20
sa, reaksiya natijasida olingan qo‟rg‟oshin izotopining nisbiy atom massasini ko‟rsating. A) 239 B) 235
C) 231 D) 236
17. (117-20). 220 Rn → Bi + xα + y - β + 7 1 n Ushbu yadro reaksiyasi asosida 16,5 mg radon par-chalanishida 22,6 ·10 19
‟ lgan
vismut izotopidagi neytronlar sonini toping
A) 114 B) 110 C) 117
D) 112
259 yemirilganda 54,18 ·10 18
dona elektron ajralganligi ma‟lum bo‟lsa, hosil bo‟lgan berkliy izotopining nisbiy atom massasini ko‟rsating. 259 No + 3γ → Bk + xα + y - β A) 247
B) 245 C) 232
D) 243
yadrosiga aylandi. Bu parchalanishda hosil bo‟lgan α va – β-zarrachalar miqdorini aniqlang. A) 2α va 3 – β
B) 3α va 4 – β C) 5α va 4 – β D) 4α va 5 – β 20. (120-20). 257 Fm → Bk + xHe + y - β 20,56 mg Fm parchalanganda 2,408·10 20 ta elektron hosil bo‟lsa, Bk izotopining massasini aniqlang. A) 245
B) 247 C) 241
D) 243
242 Pu + 22 Ne → A + x 1 n + 3hv Ushbu yadro reaksiyasida 7,26 mg plutoniy izotopi reaksiyaga qatnashib 72,24 ·10 18 ta neytron ajralsa, hosil bo‟lgan izotopni aniqlang. A) nilsboriy-260 B) lourensiy-250 C) kurchatoviy-261 D) kurchatoviy-260
Ushbu yadro reaksiyasida 675 g kyuriy reaksiyaga kirishgan bo‟lsa, ajralgan pozitron
miqdorini toping A) 20 B) 16
C) 12
D) 4 23. (123-20). 250 Cf → xα + y - β + 5γ + 238 Cm Ushbu yadro reaksiyasida 72,28 ·10 19 dona elektron ajralsa, reaksiyaga kirishgan kaliforniy izotopining miqdorini (mg) hisoblang. A) 62
B) 98 C) 75
D) 87
226 Ra → E + xHe + y - β 45,2 mg radiy parchalanganda 13,44 sm 3 geliy va 4,816 ·10 20 ta
elektron ajralib chiqsa, qanday izotopi hosil bo‟ladi? A)
206 Bi
B) 216
At C)
222 Fr
D) 214
Rn
257 Lr → xα + y – β + 4 1 n + 233 Cm Ushbu yadro reaksiyasida 771g lourensiy yemiril-gan bo‟lsa, hosil bo‟lgan elektron miqdorini toping. A) 8
B) 6 C) 5
D) 9
238 U → 230 Ac + x + β + y 1 n Yadro reaksiyasidagi x va y qiymatlarini aniqlang. A) 5, 4 B) 7, 4
C) 3, 8 D) 6, 3
27. (127-20). 234 U → A + 90 Kr + x 1 n + 3hv Ushbu yadro reaksiyasida 11,75 mg uran izotopi yemirilib 33,25 ·10 19
A) seziy-133 B) bariy-133 C) seziy-135 D) bariy-137
243 Pu → 224 Ac + xα + y – β + 3 1 n Ushbu yadro reaksiyasida 14,45 ·10 19 ta elektron ajralsa, reaksiyada yemirilgan plutoniy-243 miqdorini (mg) hisoblang. A) 28,54 B) 19,44 C) 25,17 D) 17,82
Ushbu yadro reaksiyasi asosida 12,8 mg eynshteyniy-256 yemirilishida 9,03·10 19
dona elektron hosil bo‟lsa, reaksiya tenglamasidagi x va y qiymatlarini toping.
B) 7, 3 C) 8, 5
D) 3, 3
1. (101-5). Ra → 214 Po + xα + y 1 n Radiy izotopi parchalanganda 64,2 mg poloniy va 54,18 ∙10 19 dona neytron hosil bo‟ldi. Reaksiyada qatnashgan radiy izotopining nisbiy atom massasini aniqlang. A) 217
B) 225 C) 235
D) 230
2. (102-5). 253 Fm → Bk + xα + y - β 15,18 mg fermiy yemirilganda 36,12 ∙10 18 ta elektron hosil bo‟lsa, berkliyning nisbiy atom massasini aniqlang. A) 247
B) 241 C) 249
D) 245
3. (103-5). 70,5 mg plutoniy parchalanganda 235 Pu → Th + xα + y 1 n 36,12
∙10 19 dona neytron hosil bo‟lsa, reaksiya natijasida olingan toriy izotopidagi neytronlar sonini aniqlang. A) 135
B) 140 C) 225
D) 230 4. (104-5). 254 No → xα + y - β + 238 Cm ushbu yadro reaksiyasi asosida 12,7 mg nobeliy yemirilishidan hosil bo‟lgan elektronlar sonini hisoblang. A) 12,04 ∙10 19
19
C) 36,12 ∙10 19
D) 18,06 ∙10 20
224 Rn → Bi + xα + y - β + 2 1 n 15,05 ∙10 19
dona elektron hosil bo‟lsa, reaksiya natijasida olingan vismut izotopidagi neytronlar sonini aniqlang. A) 114
B) 110 C) 206
D) 123
6. (106-5). 241 Cm + 2α → x - β + y 1 p + Np
ushbu yadro reaksiyasi asosida 48,2 mg kyuriy yemiril-ganda 24,08
∙10
19 dona elektron ajralsa, hosil bo‟l-gan neptuniy izotopidagi neytronlar sonini toping. A) 147
B) 152 C) 240
D) 144
7. (107-5). 239 Pu → xα + y + β + 214 Bi + 9 1 n ushbu yadro reaksiyasida 54,18 ∙10 19 dona poziton hosil bo‟lsa, reaksiyada parchalangan plutoniy miqdorini (mg) hisoblang. A) 42,5
B) 53,6 C) 67,4
D) 71,7
8. (108-5). Md + 2α → 261 Lr + x + β + y 1 n Ushbu yadro reaksiyasi asosida 13,05 mg lourensiy va 21,07 ·10 19
dona neytron hosil bo‟ldi. yemirilgan mendeleyeviy izotopining nisbiy atom massasini aniqlang. A) 264 B) 260
C) 256 D) 248
9. (109-5). 10,9 mg fransiy parchalanganda 218 Fr → Tl + xα + y - β + 2 1 n 12,04 ∙10 19
dona elektron hosil bo‟lsa, reaksiya natijasida olingan talliy izotopining nisbiy atom massasini toping. A) 196
B) 204 C) 194
D) 200
10. (110-5). 252 Es → 231 U + xα + y - β + 5 1 n ushbu reaksiya asosida 12,6 mg eynshteyniy yemirilishi-dan hosil bo‟lgan elektronlar sonini hisoblang. A) 12,04 ∙10 19
18
C) 18,06 ∙10 19
D) 3,01 ∙10 19 11. (111-5). Radiy izotopi parchalanganda Ra → 214 Po + xα + y 1 n 64,23 mg poloniy va 54,18·10 19
dona neytron hosil bo‟ldi. Reaksiyaga qatnashgan radiy izotopi yadrosidagi neytronlar sonini aniqlang. A) 137
B) 133 C) 252
D) 141 12. (112-5). 252 Es → Pu + xα + y - β Ushbu yadro reaksiyasida 15,12 mg eynshteyniy yemirilishidan 108,36·10 18
bo‟lsa, plutoniy izotopining nisbiy atom massasini aniqlang. A) 244
B) 230 C) 240
D) 236
13. (113-5). 75,9 mg kaliforniy parchalanganda 253 Cf → xα + y - β + 6γ + Cm 72,24·10 19
ta elektron hosil bo‟lsa, reaksiya natijasida olingan kyuriy izotopining nisbiy atom massasini toping. A) 245
B) 241 C) 247
D) 238
14. (114-5). 253 Cf → xα + y - β + Cm 63,25 mg kaliforniy yemirilishidan 6,02·10 20 dona elektron ajralgan bo‟lsa, reaksiya natijasida hosil bo‟lgan kyuriy izotopining nisbiy atom massasini aniqlang.
A) 234 B) 247
C) 241 D) 238
Variant – 2008 yil.
1. 11,9 mg plutoniy parchalanganda 3,01∙10 19 dona elektron hosil bo‟lsa, reaksiya natijasida olingan aktiniy izotopining nisbiy atom massasini toping. 238 Pu → Ac + x 4 α + y -1 e + 6γ A) 228
B) 230 C) 226
D) 224
2. 11,9 mg plutoniy parchalanganda 3,01∙10 19 dona elektron hosil bo‟lsa, reaksiya natijasida olingan aktiniy izotopining neytronlar sonini toping.
238 Pu → Ac + x 4 α + y -1 e + 6γ A) 135
B) 226 C) 224
D) 137
3. 12,55 mg eynshteyniy parchalanganda ( 251 Es + 2α →x 1 n + y + β + Md ) 27,07∙10 19
dona neytron hosil bo‟lsa, reaksiya natijasida olingan mendeleyeviy izotopidagi neytronlar sonini toping. A) 143
B) 149 C) 250
D) 244
4. 21,8 g fransiy parchalanganda 4,816 ∙10 23 dona elektron hosil bo‟lsa, reaksiya natijasida olingan talliy izotopining nisbiy atom massasini toping. 218 Fr → Tl + x 4 α + y -1 e + 2γ A) 184
B) 186 C) 188
D) 190
5. 21,8 g fransiy parchalanganda 4,816 ∙10 23 dona elektron hosil bo‟lsa, reaksiya natijasida olingan talliy izotopining neytronlar sonini hisoblang. 218 Fr → Tl + x 4 α + y -1 e + 2γ A) 190
B) 194 C) 109
D) 113 6.
220 Rn → 83 A + x 4 α + y - β ushbu yadro reaksiyasida 15,4 mg radon yemirilishidan 21,07∙10 19 dona elektron ajralgan bo‟lsa, hosil bo‟lgan A izotopdagi neytronlar sonini hisoblang. A) 114
B) 197 C) 189
D) 121 7.
220 Rn → 83 Bi + z 4 α + y -1 e + 3 1 n Ushbu yadro reaksiyasi asosida 5,5 mg radon yemirilishidan 75,25∙10 18
toping. A) 201
B) 193 C) 118
D) 114 8.
225 Th → Pb + x 4 α + y -1 e + 5 1 n Ushbu yadro reaksiyasi asosida 11,25 mg toriy yemirilishidan 12,04∙10 19 ta elektron ajralgan bo‟lsa, reaksiya natijasida hosil bo‟lgan qo‟rg‟o-shin izotopidagi neytronlar sonini hisoblang. A) 110
B) 114 C) 196
D) 188 9. 225 Th → Pb + x 4 α + y -1 e + 5 1 n Ushbu yadro reaksiyasi asosida 11,25 mg toriy yemirilishidan 12,04∙10 19 ta elektron ajralgan bo‟lsa, reaksiya natijasida hosil bo‟lgan qo‟rg‟oshin izotopining atom massasini aniqlang. A) 192
B) 202 C) 196
D) 188
10. 228 Pa → Rn + x 4 α + y -1 e + 2 1 n Ushbu yadro reaksiyasi asosida 11,4 mg protaktiniy yemirilishidan 9,03∙10 19
radon izotopining atom massasini aniqlang. A) 210
B) 214 C) 198
D) 208
11. 241 Cm + 2 4 α → x - β + y 1 p + 240 Np Ushbu yadro reaksiyasida 216,72∙10 19 dona proton ajralgan bo‟lsa, reaksiyada yemirilgan kyuriy izotopining miqdorini (mg) hisoblang. A) 192,8 B) 48,2 C) 96,4
D) 100,8
12. 241 Cm + 2 4 α → 240 Np + x -1 e + y 1 p Ushbu yadro reaksiyasida 48,16∙10 21 dona elektron ajralgan bo‟lsa, reaksiyada yemirilgan kyuriy izotopining miqdorini (g) hisoblang. A) 19,28 B) 4,82 C) 9,64
D) 10,08
13. 241 Cm + 2 4 α → 240 Np + x -1 e + y 1 p Ushbu yadro reaksiyasida 5,418∙10 23 dona proton ajralgan bo‟lsa, reaksiyada yemirilgan kyuriy izotopining miqdorini (g) hisoblang. A) 24,1
B) 12,05 C) 18,075 D) 9,025
14.
228 Pa → Rn + x 4 α + y -1 e + 2 1 n Ushbu yadro reaksiyasi asosida 11,4 mg protaktiniy yemirilishidan 9,03∙10 19
radon izotopidagi neytronlar sonini hisoblang. A) 210
B) 124 C) 108
D) 118
15. 234 Np + 3 4 α→ Cm + x 1 p + y -1 e Ushbu yadro reaksiyasi asosida 9,36 mg neptuniy yemirilishidan 12,04∙10 19 ta elektron ajralgan bo‟lsa, reaksiya natijasida hosil bo‟lgan kyuriy izotopining atom massasini aniqlang. A) 218
B) 224 C) 242
D) 238
16. 234 Np + 3 4 α→ Cm + x 1 p + y -1 e Ushbu yadro reaksiyasi asosida 9,36 mg neptuniy yemirilishidan 12,04∙10 19 ta elektron ajralgan bo‟lsa, reaksiya natijasida hosil bo‟lgan kyuriy izotopidagi neytronlar sonini aniqlang. A) 138
B) 124 C) 142
D) 238
17. 239 Pu → x 4 α + y + β + Bi + 9 1 n Ushbu yadro reaksiyasi asosida 95,6 mg plutoniy izotopi parchalanishidan 72,24∙10 19 dona pozitron hosil bo‟lsa, vismutning atom massasini aniqlang. A) 218
B) 214 C) 222
D) 218
18. 242 Pu → 230 Th + 3 4 α + y -1 β Ushbu yadro reaksiyasida 72,6 mg plutoniy yemirilishi natijasi-da hosil bo‟lgan elektronlar sonini hisoblang. A) 24,08∙10 19 B) 36,12∙10 19
C) 12,04∙10 19 D) 48,16∙10 19
19. 243 Pu → 224 Ac + x 4 α + y -1 β + 3 1 n Ushbu yadro reaksiyasida 54,18∙10 18 ta elektron ajralgan bo‟lsa, hosil bo‟lgan aktiniy-224 miqdorini (mg) toping. A) 4,48
B) 56,0 C) 6,72
D) 8,96 20.
243 Pu → 224 Ac + x 4 α + y -1 e + 7 1 n Ushbu yadro reaksiyasida 3,01∙10 19 dona elektron ajralgan bo‟lsa, reaksiyada hosil bo‟lgan aktiniy miqdorini (mg) hisoblang. A) 11,2
B) 5,6 C) 6,72
D) 8,96 21.
243 Pu → 224 Ac + x 4 α + y -1 β + 3 1 n Ushbu yadro reaksiyasida 54,18∙10 18 ta elektron ajralgan bo‟lsa, hosil bo‟lgan aktiniy-224 miqdorini (mg) toping. A) 4,48
B) 56,0 C) 6,72
D) 8,96 22.
245 Pu → 214 Bi + z 4 α + y -1 e + 3 1 n Ushbu yadro reaksiyasida 82,56∙10 19 dona elektron hosil bo‟lsa, reaksiyada parchalangan plutoniy miqdorini (mg) hisoblang. A) 118
B) 112 C) 106
D) 59,0 23.
246 Pu → 230 Th + x 4 α + y -1 e Ushbu yadro reaksiyasida 98,4 mg plutoniy yemirilishi natijasida hosil bo‟lgan elektronlar sonini hisoblang. A) 84,08∙10 19 B) 76,12∙10 19
C) 96,32∙10 19 D) 48,16∙10 19
246 Pu → Th + x 4 α + y -1 e + 2 1 n Ushbu yadro reaksiyasida 9,84 mg plutoniy yemirilishi natijasida 48,16∙10 18
ta elektron ajralgan bo‟lsa, reaksiya natijasida hosil bo‟lgan toriy izotopidagi neytronlar sonini toping. A) 232 B) 228
C) 142 D) 140
25. 246 Pu → Th + x 4 α + y -1 e + 2 1 n Ushbu yadro reaksiyasida 9,84 mg plutoniy yemirilishi natijasida 48,16∙10 18
ta elektron ajralgan bo‟lsa, reaksiya natijasida hosil bo‟lgan toriy izotopining atom massasini hisoblang. A) 232 B) 228
C) 234 D) 240
26. 238 U + z 1 n → y -1 e + 4γ + 243 Am Ushbu yadro reaksiyasi asosida 95,2 mg uran yemirilishidan necha dona elektron hosil bo‟ladi? A) 64,20∙10 19 B) 72,24∙10 19
C) 96,32∙10 19 D) 48,16∙10 19
238 U + z 1 n → y -1 e + 6γ + 243 Cm Ushbu yadro reaksiyasi asosida 11,9 mg uran yemirilishidan necha dona elektron hosil bo‟ladi? A) 6,03∙10 19 B) 12,04∙10 19
C) 8,96∙10 19 D) 24,08∙10 19
28. 257 Cf → 96 Cm + x 4 α + y -1 e + 5γ 51,4 g kaliforniy parchalanganda 48,16∙10 22 dona elektron hosil bo‟lsa, reaksiya natijasida olingan kyuriy izotopidagi neytronlar sonini aniqlang. A) 245 B) 238
C) 149 D) 142
29.
257 Cf → 96 Cm + x 4 α + y -1 e + 5γ 51,4 g kaliforniy parchalanganda 48,16∙10 22 dona elektron hosil bo‟lsa, reaksiya natijasida olingan kyuriy izotopining atom massasini aniqlang. A) 245
B) 238 C) 249
D) 242
30. 251 Es + 2 4 α → 101 Md + x -1 e + y 1 n 15,06 g eynshteyniy parchalanganda 108,36∙10 21 dona neytron hosil bo‟lsa, reaksiyada olingan men-deleyeviy izotopidagi neytronlar sonini aniqlang. A) 155 B) 256
C) 149 D) 250
31.
251 Es + 2 4 α → 101 Md + x -1 e + y 1 n 15,06 g eynshteyniy parchalanganda 108,36∙10 21 dona neytron hosil bo‟lsa, reaksiya olingan mende-leyeviy izotopining atom massasini aniqlang. A) 258 B) 256
C) 248 D) 250
32.
252 Es → 231 U + x 4 α + y - β + 5 1 n Ushbu yadro reaksiyasida 42,14∙10 18 dona elektron hosil bo‟lsa, reaksiyada yemirilgan eynshteyniy izotopining miqdorini (mg) hisoblang. A) 15,6 B) 23,6
C) 17,64 D) 20,8
33. 252 Es → 230 U + x 4 α + y -1 e + 2 1 n Ushbu yadro reaksiyasida 12,6 mg eynshteyniy ye-mirilishidan hosil bo‟lgan elektronlar sonini toping. A) 9,03∙10 19 B) 12,04∙10 19
C) 8,96∙10 19 D) 6,02∙10 19
34. 252 Es → 230 U + x 4 α + y -1 e + 2 1 n Ushbu yadro reaksiyasida 72,24∙10 18 dona elektron ajralgan bo‟lsa, yemirilgan eynshteyniy miqdorini (mg) hisoblang. A) 10,08
B) 12,04 C) 5,54
35.
252 Es → Pu + x 4 α + y - β + 2 1 n Ushbu yadro reaksiyasida 75,6 mg eynshteyniy yemirilishidan 54,18 ∙10 19
neytronlar sonini hisoblang. A) 136
B) 140
C) 235 D) 138
36.
253 Fm → 97 Bk + x 4 α + y -1 e + 4γ 50,6 g fermiy yemirilganda 36,12∙10 22 dona elektron hosil bo‟lsa, reaksiya natijasida olingan berkliy izotopining nisbiy atom massasini aniqlang. A) 244 B) 236
C) 241 D) 252
37.
253 Fm → 97 Bk + x 4 α + y -1 e + 4γ 50,6 g fermiy yemirilganda 36,12∙10 22 dona elektron hosil bo‟lsa, reaksiya natijasida olingan berkliy izotopining neytronlari sonini hisoblang. A) 144 B) 136
C) 241 D) 152
38.
253 Cf → x 4 α + y - β + Cm Ushbu yadro reaksiyasida 10,12 mg kaliforniy yemirilishidan 96,32∙10 18 dona elektron ajralgan bo‟lsa, reaksiya natijasida hosil bo‟lgan kyuriy izotopidagi neytronlar sonini hisoblang. A) 241
B) 145 C) 141
D) 152
39. 254 No → 234 Cm + x 4 α + y -1 e + 12γ Ushbu yadro reaksiya asosida 12,7 mg nobeliy yemirilgan bo‟lsa, hosil bo‟lgan elektronlarning sonini hisoblang. A) 6,03∙10 19 B) 12,04∙10 19
C) 8,96∙10 19 D) 24,08∙10 19
40. 254 No → 234 Cm + x 4 α + y -1 e + 12γ Ushbu yadro reaksiyasida 20,32 mg nobeliy yemirilishidan 192,64∙10 18
aniqlang. A) 228
B) 230 C) 232
D) 234
41. 254 No → x 4 α + y - β + 238 Cm Ushbu yadro reaksiyasi asosida 76,2 mg nobeliy yemirilishidan hosil bo‟lgan elektronlarning sonini hisoblang. A) 18,06∙10 19 B) 12,04∙10 19
C) 36,12∙10 19 D) 24,08∙10 19
42. 47,2 mg kyuriy parchalanganda (
Cm + 2α → x - β + y 1 H + Np) 36,12∙10 19 dona elektron hosil bo‟lsa, reaksiya natijasida olingan neptuniy izotopining nisbiy atom massasini toping.
A) 228 B) 230
C) 232 D) 234
43. 75 mg eynshteyniy parchalanganda (
19 dona elektron hosil bo‟lsa, reaksiya natijasida olingan uran izotopidagi neytronlar sonini aniqlang. A) 231
B) 234 C) 139
D) 134
44. 9,28 mg protaktiniy parchalanganda ( 232 Pa → Pb + xα + y - β) 16,856∙10 19 dona elektron hosil bo‟lsa, reaksiya natijasida olingan
qo‟rg‟oshin izotopining nisbiy atom massasini aniqlang. A) 207
B) 200 C) 202
D) 204
45. 9,36 mg plutoniy parchalanganda ( 234 Pu → Ac + xα + y - β) 24,08∙10 18 dona elektron hosil bo‟lsa, reaksiya natijasida olingan aktiniy izotopining nisbiy atom massasini aniqlang. A) 225
B) 220 C) 222
D) 224
46. Protaktiniy izotopi parchalanganda (Pa → 200 Pb + xα + y - β + 6 1 n) 60 mg qo‟rg‟oshin va 54,18 ∙10 19 dona elektron hosil bo‟ldi. Reaksiyaga qatnashgan protaktiniy izotopining nisbiy atom massasini aniqlang. A) 228 B) 230
C) 232 D) 234
47. Quyida berilgan yadro reaksiyasi asosida 15,68 mg fransiy yemirilishidan 84,28 ∙10 18 dona elektron ajralgan bo‟lsa, hosil bo‟lgan talliy izotopidagi neytron sonini hisoblang. 224 Fr → Tl + x 4 α + y - β A) 208
B) 204 C) 127
D) 123 |
