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Niobium
Niobium

Hafnium
Hafnium



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Niobium
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Hafnium

Facts About Niobium and Hafnium

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1 Facts
1.1 Interesting Facts
  • Niobium metal was used to get called Columbium in past.
  • Niobium metal found freely in nature (abundance).
  • Hafnium metal is highly reactive, hence not found free in nature.
  • Hafnium metal as predicated after Mendeleev finished his periodic table.
1.2 Sources
By-product of Tin Extraction, Found in Minerals, Mining, Ores of Minerals
By-product Zirconium Refining
1.3 History
1.3.1 Who Discovered
Charles Hatchett
Dirk Coster and George de Hevesy
1.3.2 Discovery
In 1801
In 1922
1.4 Abundance
1.4.1 Abundance In Universe
2 * 10-7 %7 * 10-8 %
Facts About Thallium
5E-09 0.11
1.4.2 Abundance In Sun
~0.0000004 %~0.0000001 %
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