Thallium: historical information

  • Discoveror: Sir William Crookes
  • Place of discovery: England
  • Date of discovery: 1861
  • Origin of name : from the Greek word "thallos" meaning "green twig" or green shoot.

Thallium was discovered spectroscopically in 1861 by Crookes. The element was named after the green spectral line, which identified the element (Greek "thallos", green twig). The metal was isolated both by Crookes and Lamy in 1862. They had been expecting to isolate tellurium after removing selenium from the byproducts from a commercial sulphuric acid factory but instead foundthe new element thallium.

WebElements Shop

You can buy periodic table posters, mugs, T-shirts, fridge magnets, games, molecular models, and more at the WebElements shop

81 Tl
 Thallium
 Thallium
 Thallium
 Thallium
 Tallio
 Talio
 Tallium
 Tálio

Search Chemistry Web

Custom Search

The Orbitron gallery of orbitals.

QR-code link to thallium web page