Where To Find The Electron Configuration For Thallium

Thallium is a chemical element that has a symbol Tl. The atomic number of Thallium 81. It is a grey post-transition metal which is not found free in nature. When it is isolated it resembles tin but becomes colourless when exposed to air. Chemists Claude-Auguste Lamy and William Crookes discovered thallium independently in 1861 in residues of production of sulfuric acid. Both have used the method of flame […]