Name: Europium

Atomic Symbol and Mass Number: Eu [63]

Electron Configuration: [Xe] 4f 6s

Atomic Radii: 180 pm

Electron Affinity: 50 kJ mol‑1

Oxidation States: +3, +2, +1

Electronegativity Value: 1.2

Elemental Group: Lanthanide

Uses and Properties:

• Europium has a bright, shiny surface.

• It is steel gray and has a melting point of 826°C (1,520°F) and a boiling point of about 1,489°C (2,712°F). The density is 5.24 grams per cubic centimeter.

• Europium has a strong tendency to absorb neutrons, making it useful in nuclear power production.

• A soft, silvery metal that tarnishes quickly and reacts with water. 

• Europium is used in the printing of euro banknotes.

• Europium is excellent at absorbing neutrons, making it valuable in control rods for nuclear reactors.

• Europium-doped plastic has been used as a laser material.

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Lewis Diagram: