Ytterbium

70
Yb
173.04

Properties

Symbol Name Atomic Number Atomic Weight Group Number
Yb Ytterbium 70 173.04

Description

Standard State: solid at 298 K
Color: Grayish white lustrous

Marignac in 1878 discovered a new component, which he called ytterbia, in the earth then known as erbia.  In 1907, Urbain separated yttebia into two components, which he called neoytterbia and lutecia.  The elements is these earths are now known as ytterbium and lutetium, respectively.

Ytterbium has a bright silvery luster, is soft, malleable, and quite ductile. While the element is fairly stable, it should be kept in closed containers to protect it from air and moisture.

Ytterbium is readily attacked and dissolved by mineral acids and reacts slowly with water.