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

63. (v19/20-104-2) 94Pu - xa +y_p + 90Th. Ushbu yadro reaksiyasida 123 g Pu yemirilishidan 115 g Th izotopi hosil boldi. Agar x ning qiymati Сѓ ning qiyniatiga teng bolsa, Th izotopining neytronlar sonini aniqlang. A)148 B)140 C)152 D)246