Facts About Osmium and Francium
Facts
Interesting Facts
- Osmium metal does not oxidize in air unless it is heated.
- But if it heated den it forms Osmium Tetroxide, which is highly toxic.
- 223 Francium has the longest half life at 21.8.
- Francium metal is produced by alpha decay in 227Actinium 227.
Sources
Found As a By-product, Found in Minerals, Mining
Formed by Decay Process, Mining
History
Who Discovered
Smithson Tennant
Marguerite Perey
Discovery
In 1803
In 1939
Abundance
Abundance In Universe
3 * 10-7 %
21
Not Available
Abundance In Sun
~0.0000002 %
25
~-9999 %
Abundance In Meteorites
0.00 %
28
Not Available
Abundance In Earth's Crust
0.00 %
99+
Not Available
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