A rare element of the boron group, sometimes associated with yttrium or other related elements, as in euxenite and gadolinite. Symbol Yb; provisional atomic weight 173.2. Cf. Yttrium.

A chemical element with atomic number 70. Ytterbium was discovered in 1878 by Marignac. The name ytterbium is derived from Ytterby, a town in Sweden, its place of discovery. Symbol: Yb. Related to lanthanides. Related to rare earths. Related to yttrium earths.

a soft silvery metallic element; a rare earth of the lanthanide series; it occurs in gadolinite and monazite and xenotime

Yb redirects here; for the unit of information see Yottabit

A trace mineral

Enhances cell growth, and extends their life. Has been shown to double the life span of laboratory animals. It is an ionic plant source mineral.