What is Unbipentium?
{{Infobox unbipentium}} '''''Unbipentium''''' is a hypothetical (theoretical or imagined) element of the periodic table. It is also known as eka-neptunium. The atomic number of this element is 125. It has the symbol '''''Ubp'''''. The name Unbipentium and the symbol Ubp are temporary [[IUPAC nomenclature|IUPAC]] names. This name and symbol exist until a permanent name is decided. It is expected to be a g-block element and an super[[actinides]]. It is the sixth element in the eighth period of the periodic table. The synthesis of unbipentium was first attempted in 1977 by bombarding a target of [[Americium]]-238 with [[zinc]]-65 ions at the [[GSI Helmholtz Centre for Heavy Ion Research]] in [[Darmstadt]], [[Germany]]: * <sup>243</sup>Am + <sup>66,68</sup>Zn → <sup>309,311</sup>Ubp No atoms were identified.<ref name=beyonduranium>{{cite book |last=Hofmann |first=Sigurd |date=2002 |title=On Beyond Americium |publisher=Taylor & Francis |page=105 |isbn=978-0-415-28496-7}}</ref> == References == {{reflist}} {{Extended periodic Table}} [[Category:Hypothetical chemical elements]] [[Category:Superactinides]] {{chem-stub}}