Thallium

Shell Structure



Crystal Structure
ElementInformation
Atomic Number:81
Symbol:Tl
Name:Thallium
Name Origin:Greek, thallos, "green twig"
Type:Other Metal
Atomic Mass:204.3833
Melting Point:304
Boiling Point:1457
Neutrons:123
Density:11.85
Crystal Structure:Hexagonal
Discovered:1861
Discoverers:Discovered by Sir William Crookes (UK).
Other Names:

Mercury Periodic Table Lead