Ytterbium

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Ytterbium
Properties
Atomic symbol Yb
Atomic number 70
Classification Metallic
Atomic mass 173.04 amu
Other Information
Date of discovery 1878
Name of discoverer Jean Charles Galissard de Marignac
Name origin Named for Ytterby, Sweden
Uses Used in metallurgical and chemical experiments and sometimes used in stress gauges.
Obtained from Found in minerals such as yttria, monazite, gadolinite, and xenotime.