unequal fission造句

• In nuclear fission events the nuclei may break into any combination of lighter nuclei, but the most common event is not fission to equal mass nuclei of about mass 120; the most common event ( depending on isotope and process ) is a slightly unequal fission in which one daughter nucleus has a mass of about 90 to 100 "'u "'and the other the remaining 130 to 140 "'u " '.
• Unequal fissions are energetically more favorable because this allows one product to be closer to the energetic minimum near mass 60 "'u "'( only a quarter of the average fissionable mass ), while the other nucleus with mass 135 "'u "'is still not far out of the range of the most tightly bound nuclei ( another statement of this, is that the atomic binding energy curve is slightly steeper to the left of mass 120 "'u "'than to the right of it ).