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Hafnium
Hafnium

Gadolinium
Gadolinium



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Hafnium
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Gadolinium

Facts About Hafnium and Gadolinium

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.
  • Gadolinium is not found free in nature, hence it is not a native metal.
  • Gadolinium metal found in minerals like Monazite and Bastnaesite.
1.2 Sources
By-product Zirconium Refining
Found in Minerals, Mining
1.3 History
1.3.1 Who Discovered
Dirk Coster and George de Hevesy
Jean Charles Galissard de Marignac
1.3.2 Discovery
In 1922
In 1880
1.4 Abundance
1.4.1 Abundance In Universe
7 * 10-8 %2 * 10-7 %
Facts About Thallium
5E-09 0.11
1.4.2 Abundance In Sun
~0.0000001 %~0.0000002 %
Facts About Beryllium
1E-08 0.1
1.4.3 Abundance In Meteorites
0.00 %0.00 %
Facts About Gold
1.7E-07 22
1.4.4 Abundance In Earth's Crust
0.00 %0.00 %
Facts About Radium
9.9E-12 8.1
1.4.5 Abundance In Oceans
0.00 %0.00 %
Facts About Protactinium
2E-23 1.1
1.4.6 Abundance In Humans
NANA
Facts About Radium
1E-13 1.4