Facts About Protactinium and Lanthanum
Facts
Interesting Facts
- Protactinium metal has 29 isotopes.
- Isotopes of Protactinium-231 used in nuclear weapon.
- Lanthanum metal is highly malleable, ductile and sectile.
- If exposed to air Lanthanum metal oxidizes rapidly.
Sources
Found in Uranium Ores, Mining, Ores of metals
Found in Minerals, Mining, Ores of Minerals
History
Who Discovered
William Crookes
Carl Gustaf Mosander
Discovery
In 1900
In 1838
Abundance
Abundance In Universe
Not Available
2 * 10-7 %
22
Abundance In Sun
~-9999 %
~0.0000002 %
25
Abundance In Meteorites
Not Available
0.00 %
32
Abundance In Earth's Crust
0.00 %
99+
0.00 %
19
Abundance In Oceans
0.00 %
99+
0.00 %
29
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