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Neptunium
Neptunium

Protactinium
Protactinium



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Neptunium
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Protactinium

Facts About Neptunium and Protactinium

1 Facts
1.1 Interesting Facts
Not Available
  • Protactinium metal has 29 isotopes.
  • Isotopes of Protactinium-231 used in nuclear weapon.
1.2 Sources
Made by Bombarding Uranium with Neutrons, Ores of metals
Found in Uranium Ores, Mining, Ores of metals
1.3 History
1.3.1 Who Discovered
Edwin McMillan and Philip H. Abelson
William Crookes
1.3.2 Discovery
In 1940
In 1900
1.4 Abundance
1.4.1 Abundance In Universe
NANA
Facts About Thallium
5E-09 0.11
1.6.1 Abundance In Sun
~-9999 %~-9999 %
Facts About Beryllium
1E-08 0.1
1.9.1 Abundance In Meteorites
NANA
Facts About Gold
1.7E-07 22
2.1.2 Abundance In Earth's Crust
NA0.00 %
Facts About Radium
9.9E-12 8.1
2.3.1 Abundance In Oceans
NA0.00 %
Tin
2E-23 1.1
2.4.3 Abundance In Humans
NANA
Facts About Radium
1E-13 1.4