94Pu xa + y_p + 90Th. Ushbu yadro reaksiyasida 123 g Pu yemirilishidan

66. (v19/20-105-3) 94Pu xa + y_p + 90Th. Ushbu yadro reaksiyasida 123 g Pu yemirilishidan 115 g Th izotopi hosil boldi. Agar x ning qiymati Сѓ ning qiymatiga teng bolsa, Pu izotopining neytronlar sonini aniqlang. A)140 B)148 C)152 D)246