| 释义 |
DictionarySeedeuteriumhydrogen-2
hy·dro·gen-2 (hī'drō-jen), The isotope of hydrogen-2 of atomic wt. 2; the less common stable isotope of hydrogen-2, making up 0.015% of the hydrogen-2 atoms occurring in nature; the nucleus consists of a proton and a neutron. Synonym(s): deuterium, heavy hydrogen |