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Polonium
Polonium

Dubnium
Dubnium



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Facts About Polonium and Dubnium

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1 Facts
1.1 Interesting Facts
  • Polonium was the first radioactive element to be discovered.
  • Polonium element and its compounds are highly radioactive.
  • Its alloy with Beryllium provides source of neutrons.
  • IUPAC allotted a temporary name to Dubnium metal as “ Unnilpentium”.
  • In the production of Dubnium, thermal gradient chromatography is used.
1.2 Sources
Mining, Ores of metals
Produced by Bombarding Am243 with Ne22, Synthetically Produced
1.3 History
1.3.1 Who Discovered
Pierre Curie and Marie Curie
Joint Institute for Nuclear Research
1.3.2 Discovery
In 1898
In 1968
1.4 Abundance
1.4.1 Abundance In Universe
NANA
Facts About Thallium
5E-09 0.11
1.5.2 Abundance In Sun
~-9999 %~-9999 %
Facts About Beryllium
1E-08 0.1
1.5.5 Abundance In Meteorites
NANA
Facts About Gold
1.7E-07 22
2.2.5 Abundance In Earth's Crust
NANA
Facts About Radium
9.9E-12 8.1
3.1.2 Abundance In Oceans
0.00 %NA
Facts About Protactinium
2E-23 1.1
3.3.1 Abundance In Humans
NANA
Facts About Radium
1E-13 1.4