Name: Praseodymium

Atomic Symbol and Mass Number: Pr [59]

Electron Configuration: [Xe] 4f   6s

Atomic Radii: 182 pm

Electron Affinity: 50 kJ mol‑1

Oxidation States:  +5, +4, +3,+2

Electronegativity Value: 1.13

Elemental Group: Lanthanide

Uses and Properties:

• It is a soft, silvery, lustrous, metallic, ductile metal

• Praseodymium is used in a variety of alloys. The high-strength alloy it forms with magnesium is used in aircraft engines. Mischmetal is an alloy containing about 5% praseodymium and is used to make flints for cigarette lighters.

• It readily reacts with water to form hydroxides and air to form oxides

• It generally exists in its trivalent state

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Lewis Diagram: