Unbiunium

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Unbiunium (pronEng|ˌʌnbiˈjuːniəm) is the temporary name of an undiscovered chemical element in the periodic table that has the temporary symbol Ubu and has the atomic number 121.

Unbiunium is the first element whose ground state electron configuration contains an electron in a g subshell, making it the first element in the g-block. However, neither lanthanum nor actinium show such a predicted ground state for the f-block, and lag in the transition metals, so unbiunium's third electron should also hang up. Other elements have access to their g subshells, though not in their ground states.

Naming

The name unbiunium 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.

External links

* [http://www.apsidium.com/elements/121.htm Likely properties of Unbiunium]
* [http://library.iem.ac.ru/j-ch-ph/1998/10-10998.html Journal of Chemical Physics, 1998, V 109, N 10, 8 Sep.]

ee also

*Unbinilium–Unbibium