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Thorium
Thorium

Dubnium
Dubnium



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Dubnium

Facts About Thorium and Dubnium

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1 Facts
1.1 Interesting Facts
  • Thorium metal is used as an alternate option over Uranium for nuclear fuel.
  • Thorium metals appearance (silvery white, soft) is somewhat similar to Lead metal.
  • IUPAC allotted a temporary name to Dubnium metal as “ Unnilpentium”.
  • In the production of Dubnium, thermal gradient chromatography is used.
1.2 Sources
Found in Minerals, Mining
Produced by Bombarding Am243 with Ne22, Synthetically Produced
1.3 History
1.3.1 Who Discovered
Jöns Jakob Berzelius
Joint Institute for Nuclear Research
1.3.2 Discovery
In 1829
In 1968
1.4 Abundance
1.4.1 Abundance In Universe
3 * 10-4 %NA
Facts About Thallium
5E-09 0.11
1.4.2 Abundance In Sun
~0.0004 %~-9999 %
Facts About Beryllium
1E-08 0.1
1.4.3 Abundance In Meteorites
0.05 %NA
Facts About Gold
1.7E-07 22
1.4.4 Abundance In Earth's Crust
0.66 %NA
Facts About Radium
9.9E-12 8.1
1.4.5 Abundance In Oceans
0.00 %NA
Facts About Protactinium
2E-23 1.1
1.4.6 Abundance In Humans
NANA
Facts About Radium
1E-13 1.4