Samarium (Sm)

Samarium (Sm)


Atomic Number: 62

Atomic Weight: 150.36

Melting Point: 1347 K (1074°C or 1965°F)

Boiling Point: 2067 K (1794°C or 3261°F)

Density: 7.52 grams per cubic centimeter

Phase at Room Temperature: Solid

Element Classification: Metal

Period Number: 6

Group Number: none

Group Name: Lanthanide


Samarium isotopes are used in various applications. Sm-144 is used for the production of the therapeutic radioisotope Sm-145. Sm-147 has been bombarded with Ca-40 to produce the short-lived radioisotopes Pb-182. Sm-148 has been used to study the giant monopole resonance while Sm-149 has been used in a filter for polarizing thermal neutrons. Sm-152 is used for the production of the radioisotope Sm-153 which is used for bone pain palliation. Finally, Sm-154 has been used to study the excited states of Sm-153.

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