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Actinium
Actinium

Osmium
Osmium



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Facts About Actinium and Osmium

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Interesting Facts

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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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  • Osmium metal does not oxidize in air unless it is heated.
  • But if it heated den it forms Osmium Tetroxide, which is highly toxic.
Found As a By-product, Found in Minerals, Mining
Smithson Tennant
In 1803
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