Plutonium (Pu)

A fascinating actinide element.

Plutonium is element 94 on the periodic table.

Element properties

Atomic number
94
Symbol
Pu
Atomic mass
244 u
Category
Actinide
Period
7
Group
Not assigned
Block
f
State
Solid
Electron configuration
[Rn] 5f6 7s2
Electronegativity (Pauling)
1.28
Density
19.82 g/cm³
Melting point
640 °C
Boiling point
3228 °C