scandium 的定义
Chemistry.
- a rare, trivalent, metallic element obtained from thortveitite. Symbol: Sc; atomic weight: 44.956; atomic number: 21; specific gravity: 3.0.
更多scandium例句
- In 1875 Lecoq de Boisbandram discovered gallium, which filled one of the gaps; scandium and germanium filled the other two later.
- Its group members, scandium and yttrium, have the same form; we have not examined the fourth; the group is positive.
- The A funnel of vanadium repeats the A funnel of scandium, with the addition of d 20, already studied.
- Nitrogen has nothing new to show us, all its constituents having appeared in scandium and yttrium.
- In yttrium, on the proto level, a 110 and b 63 both escape from the funnel, and behave as in scandium.