Name:
Thallium
Symbol:
Tl
Atomic Number:
81
Atomic Mass:
204.37
Atomic Volume:
17.22 cc/mol
Discovered By:
Crookes
Discovery Date:
1861-2
Origin of Name:
Thallium - (Greek) thallos, (green shoot or twig, (from its green spectral line))
Toxicity:
Apparently toxic. Compounds are toxic; they are strong nerve and protoplasmic poisons; their action is similar to that of
arsenic
and
lead
compounds; thallium salts produce trichorrhea.
Summary:
Not found free in Nature. Thallium is readily oxidized by air forming a gray coating of oxide.
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