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Hafnium
Hafnium

Barium
Barium



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Hafnium
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Facts About Hafnium and Barium

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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.
  • Barium oxidizes very easily in the air.
  • All toxic compounds of Barium can easily dissolve in water.
  • Barium carbonate is used to produce a Rat poison and its other compound Barium nitrate is used in fireworks to produce green color.
1.2 Sources
By-product Zirconium Refining
Earth's crust, Found in Minerals, Mining, Ores of Minerals
1.3 History
1.3.1 Who Discovered
Dirk Coster and George de Hevesy
Carl Wilhelm Scheele
1.3.2 Discovery
In 1922
In 1772
1.4 Abundance
1.4.1 Abundance In Universe
7 * 10-8 %1 * 10-6 %
Facts About Thallium
5E-09 0.11
1.4.2 Abundance In Sun
~0.0000001 %~0.000001 %
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 %0.03 %
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
NA0.00 %
Facts About Radium
1E-13 1.4