×

Neodymium
Neodymium

Promethium
Promethium



ADD
Compare
X
Neodymium
X
Promethium

Facts About Neodymium and Promethium

1 Facts
1.1 Interesting Facts
  • Neodymium is not found free in nature, hence it is not a native metal.
  • Neodymium metal found in minerals like Monazite and Bastnaesite.
  • Promethium metal found in Pitchblende.
  • Promethium metal is highly radioactive metal.
1.2 Sources
Found in Minerals, Mining
Found in Minerals, Mining
1.3 History
1.3.1 Who Discovered
Carl Auer von Welsbach
Chien Shiung Wu, Emilio Segrè, Hans Bethe
1.3.2 Discovery
In 1885
In 1942
1.4 Abundance
1.4.1 Abundance In Universe
1 * 10-6 %NA
Facts About Thallium
5E-09 0.11
1.5.1 Abundance In Sun
~0.0000003 %~-9999 %
Facts About Beryllium
1E-08 0.1
1.6.1 Abundance In Meteorites
0.00 %NA
Facts About Gold
1.7E-07 22
1.7.2 Abundance In Earth's Crust
0.00 %NA
Facts About Radium
9.9E-12 8.1
1.7.4 Abundance In Oceans
0.00 %NA
Facts About Protactinium
2E-23 1.1
1.7.5 Abundance In Humans
NANA
Facts About Radium
1E-13 1.4