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Americium
Americium

Hafnium
Hafnium



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Facts About Americium and Hafnium

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1 Facts
1.1 Interesting Facts
  • Americium metal is produced by bombarding Plutonium with Neutrons.
  • Americium metal was discovered as a by-product while testing an atomic bomb (Manhattan Project).
  • Hafnium metal is highly reactive, hence not found free in nature.
  • Hafnium metal as predicated after Mendeleev finished his periodic table.
1.2 Sources
Obtained By Bombarding Plutonium with Neutrons
By-product Zirconium Refining
1.3 History
1.3.1 Who Discovered
Glenn T. Seaborg, Ralph A. James, Leon O. Morgan, Albert Ghiorso
Dirk Coster and George de Hevesy
1.3.2 Discovery
In 1944
In 1922
1.4 Abundance
1.4.1 Abundance In Universe
NA7 * 10-8 %
Facts About Thallium
5E-09 0.11
1.6.1 Abundance In Sun
~-9999 %~0.0000001 %
Facts About Beryllium
1E-08 0.1
1.7.2 Abundance In Meteorites
NA0.00 %
Facts About Gold
1.7E-07 22
1.7.4 Abundance In Earth's Crust
NA0.00 %
Facts About Radium
9.9E-12 8.1
1.8.1 Abundance In Oceans
NA0.00 %
Facts About Protactinium
2E-23 1.1
1.8.2 Abundance In Humans
NANA
Facts About Radium
1E-13 1.4