Basic Information

Name: Samarium 
Symbol: Sm 
Atomic Number: 62 
Atomic Mass: 150.36 amu 
Melting Point: 1072.0 °C (1345.15 K, 1961.6 °F) 
Boiling Point: 1900.0 °C (2173.15 K, 3452.0 °F) 
Number of Protons/Electrons: 62 
Number of Neutrons: 88 
Classification: Rare Earth 
Crystal Structure: Rhombohedral 
Density @ 293 K: 7.54 g/cm3 
Color: silver
Date of Discovery: 1879 
Discoverer: Paul Emile Lecoq de Boisbaudran 
Name Origin: smarskite (mineral) 
Uses: used in magnets, in alloys with cobalt, and nuclear reactors 
Obtained From: found with other rare earths