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Americium
Americium

Roentgenium
Roentgenium



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Roentgenium

Facts About Americium and Roentgenium

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).
Not Available
1.2 Sources
Obtained By Bombarding Plutonium with Neutrons
Synthetically Produced
1.3 History
1.3.1 Who Discovered
Glenn T. Seaborg, Ralph A. James, Leon O. Morgan, Albert Ghiorso
Gesellschaft für Schwerionenforschung
1.3.2 Discovery
In 1944
In 1994
1.4 Abundance
1.4.1 Abundance In Universe
NANA
Facts About Thallium
5E-09 0.11
1.4.4 Abundance In Sun
~-9999 %~-9999 %
Facts About Beryllium
1E-08 0.1
1.4.5 Abundance In Meteorites
NANA
Facts About Gold
1.7E-07 22
1.6.2 Abundance In Earth's Crust
NANA
Facts About Radium
9.9E-12 8.1
1.6.4 Abundance In Oceans
NANA
Facts About Protactinium
2E-23 1.1
1.6.6 Abundance In Humans
NANA
Facts About Radium
1E-13 1.4