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Dubnium
Dubnium
☒

Francium
Francium
☒



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Facts About Dubnium and Francium

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Interesting Facts

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Discovery

Abundance In Universe

Abundance In Sun

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Abundance In Humans

 
  • IUPAC allotted a temporary name to Dubnium metal as “ Unnilpentium”.
  • In the production of Dubnium, thermal gradient chromatography is used.
Produced by Bombarding Am243 with Ne22, Synthetically Produced
Joint Institute for Nuclear Research
In 1968
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  • 223 Francium has the longest half life at 21.8.
  • Francium metal is produced by alpha decay in 227Actinium 227.
Formed by Decay Process, Mining
Marguerite Perey
In 1939
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