Periodic table of elements

63 - Europium [Eu]

63: Europium - Europium [Eu]
Group: 3
Period: 6
Atomic number: 63
Atomic mass: 151.964
Configuration: [Xe] 4f76s2
Atomic radius: 231 pm
Covalent radius: 198 pm
Electron affinity: 50 eV
Ionization energy: 5.6704 eV
Electronic term: 8S7/2
Mass fraction in the earth crust: 0.0000018
Mass fraction in the earth space: 0.0000000005
Electronegativity: 1.2

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