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mineralogy elements Eu Europium

Eu - Europium - METAL LANTHANIDES

822°
1597°
151.964
2
3
63
Eu
[Xe] 4f7 6s2
2
8
18
25
8
2
1.2
5.6704
Synthetic
Radioactive
Liquid
Gaseous
Europium Electronic configuration diagram
Electronic configuration diagram

Name Europium
Number 63
Atomic 151.964
Symbol Eu
Fusion 822
Boiling 1597
Density 5.243
Period 6
Group 0
Discovery 1901 Demarcay
Abundance 2
Radius 2.6
Electronegativity 1.2
Ionization 5.6704
Number of isotopes 21
Electronic configuration [Xe] 4f7 6s2
Oxidation states 2,3
Electron by energy level 2,8,18,25,8,2

Mineral Hardness Density Formula
3.00 / 3.00 3.72 Cu2+6Ce(AsO4)3(OH)6·3H2O
5.50 / 6.00 3.43 (K1-xx)(Ca,Na)2U4+Si8O20 (x~0.5)
3.00 (Na,H2O)6(Ce,REE)3Be5MnSi9(O,OH)30F4