1 Facts
1.1 Interesting Facts
- Polonium was the first radioactive element to be discovered.
- Polonium element and its compounds are highly radioactive.
- Its alloy with Beryllium provides source of neutrons.
- Hafnium metal is highly reactive, hence not found free in nature.
- Hafnium metal as predicated after Mendeleev finished his periodic table.
1.2 Sources
Mining, Ores of metals
By-product Zirconium Refining
1.3 History
1.3.1 Who Discovered
Pierre Curie and Marie Curie
Dirk Coster and George de Hevesy
1.3.2 Discovery
1.4 Abundance
1.4.1 Abundance In Universe
1.7.1 Abundance In Sun
~-9999 %~0.0000001 %
1E-08
0.1
1.8.1 Abundance In Meteorites
3.5.2 Abundance In Earth's Crust
3.5.5 Abundance In Oceans
3.5.8 Abundance In Humans