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Roentgenium
Roentgenium

Americium
Americium



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Roentgenium
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Americium

Facts About Roentgenium and Americium

1 Facts
1.1 Interesting Facts
Not Available
  • Americium metal is produced by bombarding Plutonium with Neutrons.
  • Americium metal was discovered as a by-product while testing an atomic bomb (Manhattan Project).
1.2 Sources
Synthetically Produced
Obtained By Bombarding Plutonium with Neutrons
1.3 History
1.3.1 Who Discovered
Gesellschaft für Schwerionenforschung
Glenn T. Seaborg, Ralph A. James, Leon O. Morgan, Albert Ghiorso
1.3.2 Discovery
In 1994
In 1944
1.4 Abundance
1.4.1 Abundance In Universe
NANA
Facts About Thallium
5E-09 0.11
1.4.2 Abundance In Sun
~-9999 %~-9999 %
Facts About Beryllium
1E-08 0.1
1.4.3 Abundance In Meteorites
NANA
Facts About Gold
1.7E-07 22
1.4.4 Abundance In Earth's Crust
NANA
Facts About Radium
9.9E-12 8.1
1.4.5 Abundance In Oceans
NANA
Facts About Protactinium
2E-23 1.1
1.4.6 Abundance In Humans
NANA
Facts About Radium
1E-13 1.4