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Dubnium
Dubnium

Thulium
Thulium



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Dubnium
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Thulium

Facts About Dubnium and Thulium

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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.
  • Thulium metal can resist corrosion due to dry air .
  • Only Tm-169 isotope of Thulium metal occur naturally.
1.2 Sources
Produced by Bombarding Am243 with Ne22, Synthetically Produced
Found in Minerals, Mining, Ores of Minerals
1.3 History
1.3.1 Who Discovered
Joint Institute for Nuclear Research
Per Teodor Cleve
1.3.2 Discovery
In 1968
In 1879
1.4 Abundance
1.4.1 Abundance In Universe
NA1 * 10-8 %
Facts About Thallium
5E-09 0.11
1.4.2 Abundance In Sun
~-9999 %~0.00000002 %
Facts About Beryllium
1E-08 0.1
1.4.3 Abundance In Meteorites
NA0.00 %
Facts About Gold
1.7E-07 22
1.4.4 Abundance In Earth's Crust
NA0.00 %
Facts About Radium
9.9E-12 8.1
1.4.5 Abundance In Oceans
NA0.00 %
Facts About Protactinium
2E-23 1.1
1.4.6 Abundance In Humans
NANA
Facts About Radium
1E-13 1.4