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Iridium
Iridium

Polonium
Polonium



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Iridium
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Facts About Iridium and Polonium

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1 Facts
1.1 Interesting Facts
  • Iridium element occurs as natural alloys of Platinum and Osmium.
  • Iridium element is known as the most corrosion resistance metal .
  • Polonium was the first radioactive element to be discovered.
  • Polonium element and its compounds are highly radioactive.
  • Its alloy with Beryllium provides source of neutrons.
1.2 Sources
Found in Minerals, Mining, Ores of Minerals
Mining, Ores of metals
1.3 History
1.3.1 Who Discovered
Smithson Tennant
Pierre Curie and Marie Curie
1.3.2 Discovery
In 1803
In 1898
1.4 Abundance
1.4.1 Abundance In Universe
2 * 10-7 %NA
Facts About Thallium
5E-09 0.11
1.5.6 Abundance In Sun
~0.0000002 %~-9999 %
Facts About Beryllium
1E-08 0.1
1.6.3 Abundance In Meteorites
0.00 %NA
Facts About Gold
1.7E-07 22
1.6.7 Abundance In Earth's Crust
0.00 %NA
Facts About Radium
9.9E-12 8.1
1.2.2 Abundance In Oceans
NA0.00 %
Facts About Protactinium
2E-23 1.1
1.2.4 Abundance In Humans
NANA
Facts About Radium
1E-13 1.4