Europium

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}