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Niobium
Niobium

Dubnium
Dubnium



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Niobium
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Dubnium

Facts About Niobium and Dubnium

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1 Facts
1.1 Interesting Facts
  • Niobium metal was used to get called Columbium in past.
  • Niobium metal found freely in nature (abundance).
  • IUPAC allotted a temporary name to Dubnium metal as “ Unnilpentium”.
  • In the production of Dubnium, thermal gradient chromatography is used.
1.2 Sources
By-product of Tin Extraction, Found in Minerals, Mining, Ores of Minerals
Produced by Bombarding Am243 with Ne22, Synthetically Produced
1.3 History
1.3.1 Who Discovered
Charles Hatchett
Joint Institute for Nuclear Research
1.3.2 Discovery
In 1801
In 1968
1.4 Abundance
1.4.1 Abundance In Universe
2 * 10-7 %NA
Facts About Thallium
5E-09 0.11
1.4.4 Abundance In Sun
~0.0000004 %~-9999 %
Facts About Beryllium
1E-08 0.1
1.4.7 Abundance In Meteorites
0.00 %NA
Facts About Gold
1.7E-07 22
1.4.11 Abundance In Earth's Crust
0.00 %NA
Facts About Radium
9.9E-12 8.1
1.5.1 Abundance In Oceans
0.00 %NA
Facts About Protactinium
2E-23 1.1
1.5.2 Abundance In Humans
NANA
Facts About Radium
1E-13 1.4