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Hafnium
Hafnium

Bohrium
Bohrium



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Hafnium
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Bohrium

Facts About Hafnium and Bohrium

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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.
  • Bohrium metal is also known as Unnilseptium (Uns) and Nielsbohrium (Ns).
1.2 Sources
By-product Zirconium Refining
Found in Minerals, Mining, Synthetically Produced
1.3 History
1.3.1 Who Discovered
Dirk Coster and George de Hevesy
Gesellschaft für Schwerionenforschung
1.3.2 Discovery
In 1922
In 1981
1.4 Abundance
1.4.1 Abundance In Universe
7 * 10-8 %NA
Facts About Thallium
5E-09 0.11
1.4.2 Abundance In Sun
~0.0000001 %~-9999 %
Facts About Beryllium
1E-08 0.1
1.4.3 Abundance In Meteorites
0.00 %NA
Facts About Gold
1.7E-07 22
1.4.4 Abundance In Earth's Crust
0.00 %NA
Facts About Radium
9.9E-12 8.1
1.4.5 Abundance In Oceans
0.00 %NA
Facts About Protactinium
2E-23 1.1
1.4.6 Abundance In Humans
NANA
Facts About Radium
1E-13 1.4