单词 | neutron-rich |
释义 | > as lemmasneutron-rich neutron-rich adj. (of an atomic nucleus) containing significantly more neutrons than protons; (of an element or isotope) having nuclei of this type. ΚΠ 1949 Science 28 Jan. 82/1 The advantage of the present theory over that of Mayer and Teller is that we are able to account for the neutron-rich heavy nuclei in a natural way. 1961 G. R. Choppin Exper. Nucl. Chem. i. 3 If a nucleus has a high n/p ratio, it is said to be neutron rich. It will be unstable and will decay in a manner that will tend to bring the n/p ratio closer to the stable value. 1998 Proc. National Acad. Sci. U.S.A. 95 19/1 There are considerable uncertainties associated with the nuclear properties of the unstable, neutron-rich progenitors of the uranium and thorium isotopes of interest. < as lemmas |
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