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Mendelevium
Mendelevium

Dubnium
Dubnium



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Mendelevium
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Dubnium

Facts About Mendelevium and Dubnium

1 Facts
1.1 Interesting Facts
  • Mendelevium metal is synthetically produced metal.
  • Mendelevium metal has been produced in only trace amount.
  • IUPAC allotted a temporary name to Dubnium metal as “ Unnilpentium”.
  • In the production of Dubnium, thermal gradient chromatography is used.
1.2 Sources
Bombarding Einsteinium with Helium Ions
Produced by Bombarding Am243 with Ne22, Synthetically Produced
1.3 History
1.3.1 Who Discovered
Lawrence Berkeley National Laboratory
Joint Institute for Nuclear Research
1.3.2 Discovery
In 1955
In 1968
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