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Actinium
Actinium

Roentgenium
Roentgenium



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Roentgenium

Facts About Actinium and Roentgenium

Facts

Interesting Facts

Sources

Who Discovered

Discovery

Abundance In Universe

Abundance In Sun

Abundance In Meteorites

Abundance In Earth's Crust

Abundance In Oceans

Abundance In Humans

 
Actinium glows in the dark due to its radioactivity.
Obtained by Treating Radium with Neutrons, Ores of metals
Friedrich Oskar Giesel
In 1902
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Roentgenium is a highly unstable synthetic element.
Synthetically Produced
Gesellschaft für Schwerionenforschung
In 1994
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