Electronic data		Thermal data		Steric data
Shells: 2,8,18,25,8,2 Orbitals: [Xe] 4f7 6s2 Electronegativity: 1.0, -- 1. Ionization potential: 5.6704 eV 2. Ionization potential: 11.245 eV 3. Ionization potential: 24.926 eV Oxidation states: 3,2 Electrical conductivity: 0.0112 10^6		Melting point: 822 °C Boiling point: 1527 °C Specific heat: 0.18 J/gK Heat of fusion: 9.210 kJ/mol Heat of vaporization: 143.50 kJ/mol Thermal conductivity: 0.139 W/cmK		Atomic radius: 2.56 Å Ionic radius: 1.07 Å () Covalent radius: 1.85 Å Atomic volume: 28.9 cm³/mol Density (293 K): 5.259 g/cm³ Crystal structure: Cubic: Body centered

Nuclide	Abundance [%]	Mass	Spin	Halflife	Decay mode	Decay tree
148Eu	0	148	5	54.5d	EC,+	View
149Eu	0	149	5/2	93.1d	EC	View
150Eu	0	150	5	36y	EC	View
151Eu	47.82	150.92	5/2	--	stable	--
152Eu	0	152	3	13.48y	EC,+,-	View
152Eum	0	152	0	9.29h	-,EC,+	View
153Eu	52.18	152.921	5/2	--	stable	--
154Eu	0	154	3	8.59y	-,EC	View
155Eu	0	155	5/2	4.71y	-	View
156Eu	0	156	0	15.2d	-	View

Legend

Name origin:	Named for the continent of Europe.
Description:	Soft, silvery-white metal.
Discovered by:	Eugène Demarçay
Year:	1901
Place:	France
Sources:	Obtained from monazite sand, which is a mixture of phosphates of calcium, thorium, cerium, and most other rare earths.
Use(s):	Used with yttrium oxide to make red phosphors for color televisions.