Facts About Hafnium and Thallium
Interesting Facts
- Hafnium metal is highly reactive, hence not found free in nature.
- Hafnium metal as predicated after Mendeleev finished his periodic table.
- Compounds of Thallium metal are highly Toxic.
- Thallium metal is being suspected as a human carcinogen.
Sources
By-product Zirconium Refining
Found As a By-product, Ores of metals, Ores of Minerals
Who Discovered
Dirk Coster and George de Hevesy
William Crookes
Discovery
In 1922
In 1861
Abundance In Earth's Crust