Europyo

Europium
	63Eu
	samarium ← europium → gadolinium
Panagway
	silvery white, but rarely seen without oxide discoloration;
Kinatibuk-ang mga kinaiya
Ngalan, simbolo, kaiphan	europium, Eu, 63
Paglitok	/jʊˈroʊpiəm/; [[Help:Pronunciation respelling key\|ew-Plantilya:Smallcaps all-pee-əm]]
Kategoriyang elemento	puthaw nga lantanido
Group, period, block	[[group {{{group}}} element\|{{{group}}}]], 6, f
Gibug-aton sa atomo	151.964
Kontorno sa elektron	[Xe] 4f7 6s2; 2, 8, 18, 25, 8, 2 Electron shells of europium (2, 8, 18, 25, 8, 2)
History
Pagkadiskobre	Eugène-Anatole Demarçay (1896)
First isolation	Eugène-Anatole Demarçay (1901)
Physical properties
Phase	magahi
Density (near r.t.)	5.264 g·cm−3
Liquid density at m.p.	5.13 g·cm−3
Melting point	1099 K, 826 °C, 1519 °F
Boiling point	1802 K, 1529 °C, 2784 °F
Heat of fusion	9.21 kJ·mol−1
Heat of vaporization	176 kJ·mol−1
Molar heat capacity	27.66 J·mol−1·K−1
Vapor pressure
Atomic properties
Oxidation states	3, 2, 1; (mildly basic oxide)
Electronegativity	? 1.2 (Pauling scale)
Ionization energies	1st: 547.1 kJ·mol−1
	2nd: 1085 kJ·mol−1
	3rd: 2404 kJ·mol−1
Atomic radius	180 pm
Covalent radius	198±6 pm
Miscellanea
Crystal structure	body-centered cubic
Magnetic ordering	paramagnetic
Electrical resistivity	(r.t.) (poly) 0.900 µΩ·m
Thermal conductivity	est. 13.9 W·m−1·K−1
Thermal expansion	(r.t.) (poly); 35.0 µm/(m·K)
Young's modulus	18.2 GPa
Shear modulus	7.9 GPa
Bulk modulus	8.3 GPa
Poisson ratio	0.152
Vickers hardness	167 MPa
CAS registry number	7440-53-1
Most stable isotopes
	Main article: Isotopes of europium
	v; t; e; · r

Ang europyo (Iningles europium) mao ang elementong kimiko sa talaang peryodiko nga may simbolo nga Eu ug kaiphan nga atomik 63. Ang europyo mao ang puthaw nga lantanido.

Ang mga gi basihan niini

↑ Magnetic susceptibility of the elements and inorganic compounds, in Lide, D. R., ed. (2005). CRC Handbook of Chemistry and Physics (86th ed.). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5.

Galeriya sa hulagway

[magnet-1] Magnetic susceptibility of the elements and inorganic compounds, in Lide, D. R., ed. (2005). CRC Handbook of Chemistry and Physics (86th ed.). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5.

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