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Dubnium
Dubnium

Mendelevium
Mendelevium



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Dubnium
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Mendelevium

Facts About Dubnium and Mendelevium

1 Facts
1.1 Interesting Facts
  • IUPAC allotted a temporary name to Dubnium metal as “ Unnilpentium”.
  • In the production of Dubnium, thermal gradient chromatography is used.
  • Mendelevium metal is synthetically produced metal.
  • Mendelevium metal has been produced in only trace amount.
1.2 Sources
Produced by Bombarding Am243 with Ne22, Synthetically Produced
Bombarding Einsteinium with Helium Ions
1.3 History
1.3.1 Who Discovered
Joint Institute for Nuclear Research
Lawrence Berkeley National Laboratory
1.3.2 Discovery
In 1968
In 1955
1.4 Abundance
1.4.1 Abundance In Universe
NANA
Facts About Thallium
5E-09 0.11
1.4.2 Abundance In Sun
~-9999 %~-9999 %
Facts About Beryllium
1E-08 0.1
1.4.3 Abundance In Meteorites
NANA
Facts About Gold
1.7E-07 22
1.4.4 Abundance In Earth's Crust
NANA
Facts About Radium
9.9E-12 8.1
1.4.5 Abundance In Oceans
NANA
Facts About Protactinium
2E-23 1.1
1.4.6 Abundance In Humans
NANA
Facts About Radium
1E-13 1.4