Unbihexium

Unbihexium, ₀₀Ubh
Unbihexium
Pronunciation	/ˌuːnbaɪˈhɛksiəm/ (OON-by-HEK-see-əm)
Alternative names	element 126, eka-plutonium
Unbihexium in the periodic table
	unbipentium ← unbihexium → unbiseptium
Group	g-block groups (no number)
Period	period 8 (theoretical, extended table)
Block	g-block
Electron configuration	[Og] 5g2 6f3 8s2 8p1 (predicted) predictions vary, see text
Physical properties
	unknown
Phase at STP	unknown
Atomic properties
Oxidation states	(+1), (+2), (+4), (+6), (+8) (predicted)
Other properties
CAS Number	54500-77-5
History
Naming	IUPAC systematic element name
Isotopes of unbihexium v; e;
	Template:infobox unbihexium isotopes does not exist
	Category: Unbihexium; view; talk; edit; \| references

Unbihexium, also known as element 126 or eka-plutonium, is the possible chemical element with atomic number 126 and placeholder symbol Ubh. Unbihexium and Ubh are the temporary IUPAC name and symbol, until the element is discovered, confirmed, and a permanent name is decided upon. In the periodic table, unbihexium is expected to be a g-block superactinide and the eighth element in the 8th period. It is expected to be surprisingly stable for its size.

References

↑ Hoffman, Darleane C.; Lee, Diana M.; Pershina, Valeria (2006). "Transactinides and the future elements". In Morss; Edelstein, Norman M.; Fuger, Jean (eds.). The Chemistry of the Actinide and Transactinide Elements (3rd ed.). Dordrecht, The Netherlands: Springer Science+Business Media. ISBN 978-1-4020-3555-5.
↑ 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.

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[Hoffman-1] Hoffman, Darleane C.; Lee, Diana M.; Pershina, Valeria (2006). "Transactinides and the future elements". In Morss; Edelstein, Norman M.; Fuger, Jean (eds.). The Chemistry of the Actinide and Transactinide Elements (3rd ed.). Dordrecht, The Netherlands: Springer Science+Business Media. ISBN 978-1-4020-3555-5.

[Pyykkö2011-2] 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.

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