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Unbibium, also known as element 122 or eka-thorium, is a hypothetical chemical element; it has placeholder symbol Ubb and atomic number 122. Unbibium and Ubb are the temporary systematic IUPAC name and symbol respectively, which are used until the element is discovered, confirmed, and a permanent name is decided upon.
Pages in category "Unbibium" The following 3 pages are in this category, out of 3 total. This list may not reflect recent changes. ...
Unbiunium, also known as eka-actinium or element 121, is a hypothetical chemical element; it has symbol Ubu and atomic number 121. Unbiunium and Ubu are the temporary systematic IUPAC name and symbol respectively, which are used until the element is discovered, confirmed, and a permanent name is decided upon.
The unbibium-292 atoms were claimed to be superdeformed or hyperdeformed nuclear isomers, with a half-life of at least 10 8 years. [ 3 ] A criticism of the technique, previously used in purportedly identifying lighter thorium isotopes by mass spectrometry , [ 4 ] was published in Physical Review C in 2008. [ 5 ]
This is an accepted version of this page This is the latest accepted revision, reviewed on 2 March 2025. Periodic table of the elements with eight or more periods Extended periodic table Hydrogen Helium Lithium Beryllium Boron Carbon Nitrogen Oxygen Fluorine Neon Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon Potassium Calcium Scandium Titanium Vanadium Chromium Manganese ...
One calculation suggests that the cross section for producing unbihexium from 249 Cf and 64 Ni may be as low as nine orders of magnitude lower than the detection limit; such results are also suggested by the non-observation of unbinilium and unbibium in reactions with heavier projectiles and experimental cross section limits. [71]
A fact from Unbibium appeared on Wikipedia's Main Page in the Did you know column on 13 December 2018 (check views).The text of the entry was as follows: Did you know... that a research group led by Amnon Marinov claimed in 2008 that the hypothetical element unbibium could be found occurring naturally in thorium deposits?
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