deu·te·ri·um /duˈtɪriəm ||dju-/
重氫;氫的同位素
deu·te·ri·um /d(j)uˈtɪrɪəm/ 名詞
氘,重氫
deuterium
n : an isotope of hydrogen which has one neutron (as opposed to
zero neutrons in hydrogen) [syn: heavy hydrogen]
deuterium
Symbol: D
Atomic Weight: 2
A hydrogen atom which has but one proton and neutron. Deuterium makes up
about 0.015% of all natural hydrogen. Chemical properties are like that of
normal hydrogen, though somewhat slower.