We Use Cookies
We use cookies and other tracking technologies to improve your browsing experience on our website, to show you personalized content and targeted ads, to analyze our website traffic, and to understand where our visitors are coming from. For more information, please review our cookie policy and privacy policy.
By choosing I Accept, you consent to our use of cookies and other tracking technologies.

Europium (Eu)

From Wikipedia, the free encyclopediaEuropium is a chemical element with symbol Eu and atomic number 63. It was isolated in 1901 and is named after the continent of Europe. It is a moderately hard, silvery metal which readily oxidizes in air and water.

Europium in the periodic table

SymbolEu
Atomic number63
Group0
Period6
Blockf
Element categoryLanthanide

Physical properties

Phase at STPSolid
Density5.264 g/cm3
Atomic weight151.964 u
Melting point1099 K
825.85 °C
1518.53 °F
Boiling point1802 K
1528.85 °C
2783.93 °F

Atomic properties

Electronegativity (Pauling Scale)1.2
Electron affinity11.2 kJ/mol
Oxidation states0, +2, +3
(a mildly basic oxide)
Ionization energies
1547.1 kJ/mol
2 1085 kJ/mol
3 2404 kJ/mol
4 4120 kJ/mol

Electron configuration

Elektronkonfiguration (shorthand)[Xe] 4f7 6s2
Electron configuration1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f7 5s2 5p6 6s2
Electrons per shell2, 8, 18, 25, 8, 2

History

Discovered1896
Discovered byEugène-Anatole Demarçay
Warning: Undefined variable $footer in /customers/a/d/1/periodictable.one/httpd.www/inc/footer.php on line 34