Samarium

Symbol 符号

Sm

Atomic number 原子序数

62

Atomic mass 原子质量	150.4		Thermal conductivity 热导率	0.133
Atomic radius 原子半径	2.59		Covalent radius 共价半径	1.62
Density 密度	7.54		Atomic volume 原子体积	19.95
Melting point 熔点	1350		Oxidation states 氧化态	3,2
Boiling point 沸点	2064		Stable isotopes 稳定同位素	4
Heat of vapor. 汽化热	166.4		Electronegativity 电负性	1.17
Heat of fusion 熔化热	8.63		First ionization 第一电离能	5.64
Specific heat 比热容	0.20		Electrical conduct. 电导率	...

Electron configuration 电子排布

Samarium

As a member of the fourteen member lanthanide series, this element has few properties which distinguish it from the other members of the series. All of them along with lanthanum, yttrium, and scandium occur in very small quantities in nature. The usual source is the mineral monazite, or monazite sand, which is a mixture of phosphates containing also some thorium phosphate.

Samarium has found recent use in the manufacture of rare earth magnets which produce very high magnetic field strengths with small masses.

Samarium Nuclear Data