Tl

Thallium

Z 81 204.38 g/molPost-Transition Metal

Overview Atomic Properties Thermodynamics Electromagnetism Isotopes

Group

13

Period

6

Block

p

Occurrence

Dying low-mass stars 76%Merging neutron stars 24%Geochemical class: Chalcophile

Biological Role

Humans: Toxic

History

1861 (discovery)

William Crookes

1862 (isolation)

Claude-Auguste Lamy

Named By

William Crookes

Latin Name

Thallium

Abundance

Solar System

x

Sun

x

Meteorites

x

Earth's crust

x

Oceans

x

Humans

x