Sm	Z =  62	◊ ◊ ◊ ◊ ◊	Samarium
			Named after Russian" Samarsky"
(AM) Atomic Mass	150.36  amu	♦	Oxidation States	+2, +3
(BP) Boiling Point	1778  °C	♦	(MP) Melting Point	1072  °C
(ρ) Density	7.54  g/cm3	♦	Crystal Structure	Rhombohedral
( χ ) Electronegativity	1.2	♦	(AR) Atomic Radius	1.66  Å
Physical State	Solid	♦	(C) Heat Capacity	0.197  J/g °C
Electronic-Config	[Xe]  4f6  6s2	♦	(I1) First Ionization E	544.18  kJ/mol
(ΔHvap) Heat of Vaporization	165  kJ/mol	♦	(ΔHfus) Heat of Fusion	8.62  kJ/mol
Year of Discovery	1879	♦	Location of Discovery	France
(E°) Standard Potential	Sm2+⇔ Sm (-2.680 V),   Sm3+⇔ Sm (-2.304 V)
Stable isotopes	144Sm,  149Sm,  150Sm,  152Sm,  154Sm
Discovered/Synthesized by	Jean Charles Galissard de Marignac
Natural Source	The mineral/ore bastnasite, monazite, loparite
Common Uses	Magnets, electric motors, speakers and headphones, infrared sensors, infrared-absorbing glass
Other Info	Used in the dating of rocks and meteorites.
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