63Eu151.964
Europium
Lanthanide
Solid at STP
Period 6Block FDiscovered 1901
[Xe]6s2 4f7
Europium 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.
📖 Read more on Wikipedia →Atomic Properties
| Atomic Number | 63 |
| Atomic Mass | 151.964 u |
| Electron Configuration | [Xe]6s2 4f7 |
| Oxidation States | +3, +2 |
| Atomic Radius | 233 pm |
| Ionization Energy | 5.67 eV |
| Block | F |
Physical Properties
| Standard State | Solid |
| Melting Point | 1095 K (821.9 °C) |
| Boiling Point | 1802 K (1528.8 °C) |
| Density | 5.24 g/cm³ |
| Molar Heat | 27.66 J/(mol·K) |
| CPK Color | #61FFC7 |
Classification
| Category | Lanthanide |
| Group Block | Lanthanide |
| Period | 6 |
| Block | F |
Discovery
| Year Discovered | 1901 |
| Discovered By | Eugène-Anatole Demarçay |
| Electron Shells | 2, 8, 18, 25, 8, 2 |