• Name: Plutonium

  • Symbol: Pu

  • Number of Energy Levels: 7

  • Electrons on the outer energy level: 2

  • Atomic Number: 94

  • Atomic Mass: 244 Amu

  • Protons / Electrons: 94

  • Neutrons: 150

  • Density: 19.84 g/cm3

  • Classification: Rare Earth

Top 14 interesting facts about Plutonium

  • Plutonium was discovered in 1940 by G. T. Seaborg. Its name derives from the name of the planet Pluto.
  • Plutonium's melting point is at 639.5 C (912.65 K, 1183.1 F) and its boiling point is at 3235.0 C (3508.15 K, 5855.0 F).
  • Plutonium is a silvery-gray radioactive metal.
  • Plutonium tarnishes when exposed to air.
  • Plutonium is the heaviest primordial element.
  • Plutonium is a poor conductor of heat and electricity.
  • Plutonium is transported as plutonium oxide in sealed packages since its oxide is more stable.
  • Plutonium is a byproduct of nuclear reactions converted from uranium-238.
  • Plutonium-239 and plutonium-241 are fissile.
  • Plutonium is used in nuclear weapons and nuclear reactors.
  • Plutonium-238 is used to power and heat some spacecrafts.
  • Plutonium was used in Second World War in the bomb that destroyed Nagasaki.
  • Plutonium-238, plutonium-239, and plutonium-244 can be found in nature in small quantities.
  • Plutonium is dangerous for humans and it can accumulate in bones.