yttrium

/i-tree-uhm/US // ˈɪ tri əm //UK // (ˈɪtrɪəm) //

钇,钇合金,钇矿,钇的

Definitions

n.名词 noun

1
Chemistry.
- : a rare trivalent metallic element, found in gadolinite and other minerals. Symbol: Y; atomic weight: 88.905; atomic number: 39; specific gravity: 4.47.

Erbium, a rare metal found along with yttrium, terbium, and other rare elements in some rare minerals.
Its group members, scandium and yttrium, have the same form; we have not examined the fourth; the group is positive.
One funnel of yttrium contains exactly the same number of atoms as is contained in a gaseous atom of nitrogen.
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.