π±Tezda qoβshilib oling.π
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Alkan va sikloalkan yozma imtixon.pdf
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Mana ALKAN va SIKLOALKAN 42-savolga tayyorgarlik ichida MS da aniq tushgan savollar ham bor
@XimFactor
@XimFactor
π₯8
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π₯3
92U +10a=E+A +p+7n ushbu yadro reaksiyasida E izotopning massasi uran izotopi massasidan 4/5 marta katta, A izotopi massasidan esa 2,4 marta katta. E izotop taikibidagi elektronlar soni A izotop taikibidagi elektronlar sonidan 43 taga koβp. E ni aniqlang.
Anonymous Quiz
22%
A) Ir
33%
B) Se
32%
C) Os
13%
D) Pt
π β π₯πΌ + π¦βπ½ + π
π ushbu yadro reaksiyasida 11,9 mg uran izotopining yemirilishi natijasida 10,9 mg radon izotopi hosil boβldi. Agar x ning qiymati y dan 1,25 marta katta boβlsa. Uran izotopidagi atom massasini toping.
Anonymous Quiz
43%
A) 238
28%
B) 218
15%
C) 132
14%
D) 146
β€2