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Actinium
Actinium

Roentgenium
Roentgenium



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Actinium
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Roentgenium

Facts About Actinium and Roentgenium

1 Facts
1.1 Interesting Facts
Not Available
Not Available
1.2 Sources
Obtained by Treating Radium with Neutrons, Ores of metals
Synthetically Produced
1.3 History
1.3.1 Who Discovered
Friedrich Oskar Giesel
Gesellschaft für Schwerionenforschung
1.3.2 Discovery
In 1902
In 1994
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