The Elements Table

The Interactive Periodic Table of Elements

  • 81 Tl Thallium 204.383
  • 81 Tl Thallium 204.383
  • 81 Tl Thallium 204.383
  • Vital Element Stats

  • Name: Thallium
  • Symbol: Tl
  • Weight: 204.383
  • Family: Post-Transition Metals
  • Group: 81
  • Period: 1746
  • Composition

  • Electrons: 81
  • Protons: 81
  • Neutrons: ~123
  • Measurements

  • Density: 11.85 g/mL
  • Miscellaneous Facts

  • Discovered: 1867
  • Melting Point: 577 o C , 1070.6 o F , 850.15 o Kelvin
  • Boiling Point: 1746 o C , 3174.8 o F , 2019.15 o Kelvin
  • Cost: N/A