|Unhexoctium in the periodic table|
|Atomic number (Z)||168|
|Group||group 14 (carbon group)|
|Electrons per shell||2, 8, 18, 32, 50, 32, 18, 4, 4|
|Density (near r.t.)||19 g/cm3 (predicted)|
|Covalent radius||180 pm (predicted)|
|Main isotopes of unhexoctium|
Unhexoctium (pronounced /uːnhɛksɒktiəm/), also known as eka-flerovium, dvi-lead, or element 168, is the possible chemical element in the periodic table that has the temporary symbol Uho and has the atomic number 168. Due to instabilities, it is not known if this element is physically possible, but if possible, unhexoctium is predicted to be the last period 8 element in group 14. It should have an atomic mass around 490.
As of February 2021, no attempt has ever been made to make unhexoctium.
Naming[change | change source]
The name unhexoctium is a systematic element name, used as a placeholder until it is confirmed by other research groups and the IUPAC decides on a name. Usually, the name suggested by the discoverer(s) is chosen.
Stability[change | change source]
Unhexoctium is likely to be too unstable to be detected, which would allow very little study of it.
Predicted chemistry[change | change source]
Related pages[change | change source]
References[change | change source]
- "Unhexoctium". Periodic System. Retrieved 2021-02-06.