Pu
94 actinide Generated with AI
Plutonium
Symbol Pu
Atomic Mass 244
Plutonium is a transuranic radioactive chemical element with symbol Pu and atomic number 94. It is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized. The element normally exhibits six allotropes and four oxidation states.
Properties
- Phase: Solid
- Density: 19.816 g/cm³
- Melting Point: 912.5 K
- Boiling Point: 3505 K