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Iridium
Iridium

Francium
Francium



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Facts About Iridium and Francium

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  • Iridium element occurs as natural alloys of Platinum and Osmium.
  • Iridium element is known as the most corrosion resistance metal .
Found in Minerals, Mining, Ores of Minerals
Smithson Tennant
In 1803
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  • 223 Francium has the longest half life at 21.8.
  • Francium metal is produced by alpha decay in 227Actinium 227.
Formed by Decay Process, Mining
Marguerite Perey
In 1939
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