Facts About Polonium and Thulium
Interesting Facts
- 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.
- Thulium metal can resist corrosion due to dry air .
- Only Tm-169 isotope of Thulium metal occur naturally.
Sources
Mining, Ores of metals
Found in Minerals, Mining, Ores of Minerals
Who Discovered
Pierre Curie and Marie Curie
Per Teodor Cleve
Discovery
In 1898
In 1879
Abundance In Meteorites
-
Abundance In Earth's Crust