Samarium (Sm): Fun Facts and Information About the Element

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Fun Facts about Samarium

What is the symbol? Sm
What is the atomic number? 62
What is the atomic weight? 150.36
What is the melting point in Celsius? 1072
What is the boiling point in Celsius? 1900
What is the density (g/cm3)? 7.52
What year was it discovered? 1879
Who discovered the element? Jean Charles Galissard de Marignac
What group is the element in? 101
What is the electron configuration? [Xe] 4f6 6s2
What is the ionization energy? 5.6437
What element category is it in? Lanthanoids

Where is Samarium Found?

Samarium is found along with other members of the rare-earth elements in many minerals, including monazite and bastnasite, which are commercial sources. It occurs in monazite to the extent of 2.8%. Samarium metal can be produced by reducing the oxide with lanthanum.

What is Samarium Used For?

Samarium oxide has been used in optical glass to absorb the infrared. Samarium is used to dope calcium fluoride crystal for use in optical lasers or lasers. Samarium, along with other rare earths, is used for carbon-arc lighting for the motion picture industry.

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