Plutonium (Pu) is a chemical element belonging to the actinide series (inner transition metals), with atomic number 94 and atomic mass 244.0000 u. This sheet describes its fundamental properties, periodic position and physical characteristics.
Identity
- Name: Plutonium
- Symbol: Pu
- Atomic number: 94
- Atomic mass: 244.0000 u
Position in the periodic table
- Group: - (actinide series)
- Period: 7
- Category: Actinide (inner transition metal)
Physico-chemical properties
- Standard state: Solid
- Melting point: About 640°C
- Density: About 19.8 g/cm³
- Electron configuration: [Rn] 5f⁶ 7s²
Scientific description
Plutonium is a chemical element with symbol Pu and atomic number 94. It belongs to the actinide series of the inner transition metals and is located in period 7 of the f-block in the periodic table. Its standard atomic mass is 244.0000 u.