• Symbol Tl
  • Atomic Number - 81
  • Atomic Mass - 204.38
  • Protons - 81
  • Neutrons- 123
  • Electrons - 81
  • Melting Point - 304 degrees celsius (579.2 degrees Fahrenheit)
  • Boiling point - 1473 degees celsius (2683.4 degrees Fahrenheit)
  • Cost - $40 per pound
  • Metal
  • Aluminum family
  • Group 13
  • Origin - Greek word thallos (young shoot)
  • Sir William Crookes discovered it in 1861


Uses

  • Rat Poison (discontinued in many countries including USA
  • Ant Killer
  • Medical application for the treatment of skin infections
  • Used to make glass with high index of refraction
  • Gamma radiation dection
Crookes_William.jpgexternal image b0081.gifexternal image Thallium.jpg