Europium

Symbol

Eu

Atomic number

63

Atomic mass	151.96		Thermal conductivity	0.139
Atomic radius	2.56		Covalent radius	1.85
Density	5.26		Atomic volume	28.9
Melting point	1095		Oxidation states	3,2
Boiling point	1870		Stable isotopes	2
Heat of vapor.	143.5		Electronegativity	1.2
Heat of fusion	9.21		First ionization	5.67
Specific heat	0.18		Electrical conduct.	...

Electron configuration

Europium

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.

Europium Nuclear Data