The electron shell of biunoctium
|Name, symbol, number:||biunoctium, Buo, 218|
|Element category:||unknown (possible noble gas)|
|Group, period, block:||18, 9, p|
|Standard atomic weight:|||
|Electron configuration:|| [Uho] 6g187f148d109p6
|Density (near r.t.):||Unknown|
|Discoverer||None of as yet|
|Location discovered||None of as yet|
|Date discovered||None of as yet|
Biunoctium, also known as eka-unhexoctium or element 218, is the temporary name of a hypothetical superheavy chemical element in the periodic table that has the temporary symbol Buo and has the atomic number 218. In the periodic table of elements, it is a p-block element and the last one of the 9th period. As of 2012, no attempt has been made to synthesize this element. It is predicted to be a noble gas.
Currently, biunoctium goes under a systematic temporary element name. It is the heaviest element predicted, with the most protons. Since it is very far in the periodic table and has never been synthesized, very little is known about this element, and it is unknown whether a superheavy element like this could physically exist.
No name has yet been officially suggested for the element. According to current guidelines from IUPAC, the ultimate name for all new elements should end in "-ium", which means the name for biunoctium may end in "-ium", not "-on", even if biunoctium turns out to be a noble gas, which traditionally have names ending in "-on" (with the exception of helium, which was not known to be a noble gas when it was discovered).
Extrapolated chemical propertiesEdit
Biunoctium is a superheavy element, therefore it has a very large atom that is significantly radioactive. Since it is very far in the periodic table and has never been synthesized, very little is known about this element.
Taking the position in the periodic table as a noble gas, it is predicted to be a heavier homologue to the lighter ones. Even though, it may be a solid under relativistic effects, like ununoctium.
- Main article: Isotopes of biunoctium
In other languagesEdit
|Biunseptium • Biunoctium • Biunennium|