- Ytterbium is a chemical element with symbol Yb and atomic number 70.It is a bright, soft, silvery-white metal that is both ductile as well as malleable.
- It is a one of the rare earth metals and the metal tarnishes quickly in air and reacts slowly with water.
- It is not found free in nature but is found in a number of minerals: mainly monazite, gadolinite euxenite and xenotime.
- It is used in alloys and is added to stainless steel to improve grain refinement and strength and its compounds are also used as catalysts in the organic chemical industry.
- It forms in temperatures of minus 13 degrees Celsius and 795 degrees Celsius.
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