Europium (Eu) is a chemical element of the lanthanide series (inner-transition metal) with atomic number 63 and standard atomic mass 151.964 u. This sheet describes its fundamental properties, periodic position and physical characteristics.
Identity
- Name: Europium
- Symbol: Eu
- Atomic number: 63
- Atomic mass: 151.964 u
Position in the periodic table
- Group / Series: Lanthanides (f-block) / often placed in Group 3
- Period: 6
- Category: Inner-transition metal (lanthanide)
Physico-chemical properties
- Standard state: Solid
- Melting point: ~ 822 °C (≈ 1095 K) :contentReference[oaicite:2]{index=2}
- Density: ~ 5.24 g/cm³ :contentReference[oaicite:3]{index=3}
- Electron configuration: [Xe] 4f⁷ 6s² :contentReference[oaicite:4]{index=4}
Scientific description
Europium is a chemical element with symbol Eu and atomic number 63. It belongs to the lanthanide series (inner-transition metals) and occupies period 6 of the periodic table. Its standard atomic mass is approximately 151.964 u. It is one of the rare-earth elements, with important applications in phosphors and nuclear technology. :contentReference[oaicite:5]{index=5}