interactive
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Plutonium

Actinide
Atomic Mass
244 u
Density
19.86 g/cm³
Melting Point
640°C
Boiling Point
3,228°C
State
Solid
Discovery
1940

Discovery

Discovered by Glenn T. Seaborg, Arthur Wahl, Joseph W. Kennedy, and Edwin McMillan in 1940.

Common Uses

  • Fuel in nuclear reactors and weapons
  • Power source in space missions (e.g., RTGs)
  • Research in nuclear science

Interesting Facts

  • Named after the dwarf planet Pluto.
  • Plutonium-239 is highly fissile and critical for nuclear weapons.
  • Emits heat due to radioactive decay, useful in space applications.
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