The Elements Table

The Interactive Periodic Table of Elements

  • 89 Ac Actinium 227
  • 89 Ac Actinium 227
  • 89 Ac Actinium 227
  • Vital Element Stats

  • Name: Actinium
  • Symbol: Ac
  • Weight: 227
  • Family: Actinide
  • Group: 89
  • Period: 3470
  • Composition

  • Electrons: 89
  • Protons: 89
  • Neutrons: ~138
  • Measurements

  • Density: 10.07 g/mL
  • Miscellaneous Facts

  • Discovered: 1905
  • Melting Point: 1324 o C , 2415.2 o F , 1597.15 o Kelvin
  • Boiling Point: 3470 o C , 6278 o F , 3743.15 o Kelvin
  • Cost: N/A