Interesting Facts
Sources
Who Discovered
Discovery
Abundance In Universe
Abundance In Sun
Abundance In Meteorites
Abundance In Earth's Crust
Abundance In Oceans
Abundance In Humans
- Promethium metal found in Pitchblende.
- Promethium metal is highly radioactive metal.
Found in Minerals, Mining
Chien Shiung Wu, Emilio Segrè, Hans Bethe
- Niobium metal was used to get called Columbium in past.
- Niobium metal found freely in nature (abundance).
By-product of Tin Extraction, Found in Minerals, Mining, Ores of Minerals