Unbipentium
| Unbipentium | ||||||
|---|---|---|---|---|---|---|
| Pronunciation | /ˌuːnbaɪˈpɛntiəm/ | |||||
| Unbipentium in the periodic table | ||||||
| ||||||
| Group | g-block groups (no number) | |||||
| Period | period 8 (theoretical, extended table) | |||||
| Block | g-block | |||||
| Electrons per shell | 2, 8, 18, 32, 33, 20, 8, 4 | |||||
| Physical properties | ||||||
| Phase at STP | unknown | |||||
| Atomic properties | ||||||
| Oxidation states | (+1), (+6), (+7) (predicted)[1] | |||||
| Isotopes of Unbipentium | ||||||
| Template:infobox Unbipentium isotopes does not exist | ||||||
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 names. This name and symbol exist until a permanent name is decided. It is expected to be a g-block element and an superactinides. 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:
- 243Am + 66,68Zn → 309,311Ubp
No atoms were identified.[2]
References
[change | change source]- ↑ Pyykkö, Pekka (2011). "A suggested periodic table up to Z ≤ 172, based on Dirac–Fock calculations on atoms and ions". Physical Chemistry Chemical Physics. 13 (1): 161–8. Bibcode:2011PCCP...13..161P. doi:10.1039/c0cp01575j. PMID 20967377.
- ↑ Hofmann, Sigurd (2002). On Beyond Americium. Taylor & Francis. p. 105. ISBN 978-0-415-28496-7.
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