1 Facts
1.1 Interesting Facts
- Hafnium metal is highly reactive, hence not found free in nature.
- Hafnium metal as predicated after Mendeleev finished his periodic table.
- Strontium element is softer than Calcium.
- Silvery Strontium turns yellow, if exposed to air.
1.2 Sources
By-product Zirconium Refining
Found in Minerals, Mining, Ores of Minerals
1.3 History
1.3.1 Who Discovered
Dirk Coster and George de Hevesy
William Cruickshank
1.3.2 Discovery
1.4 Abundance
1.4.1 Abundance In Universe
7 * 10-8 %4 * 10-6 %
5E-09
0.11
2.2.2 Abundance In Sun
~0.0000001 %~0.000005 %
1E-08
0.1
2.3.2 Abundance In Meteorites
2.3.5 Abundance In Earth's Crust
2.3.8 Abundance In Oceans
2.5.2 Abundance In Humans