hypothetical chemical element with the atomic number 126 From Wikipedia, the free encyclopedia
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.
Unbihexium | ||||||
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Pronunciation | /ˌuːnbaɪˈhɛksiəm/ | |||||
Alternative names | element 126, eka-plutonium | |||||
Unbihexium in the periodic table | ||||||
| ||||||
Group | g-block groups (no number) | |||||
Period | period 8 (theoretical, extended table) | |||||
Block | g-block | |||||
Electron configuration | [Og] 5g2 6f3 8s2 8p1 (predicted)[1] predictions vary, see text | |||||
Physical properties | ||||||
unknown | ||||||
Phase at STP | unknown | |||||
Atomic properties | ||||||
Oxidation states | (+1), (+2), (+4), (+6), (+8) (predicted)[2] | |||||
Other properties | ||||||
CAS Number | 54500-77-5 | |||||
History | ||||||
Naming | IUPAC systematic element name | |||||
Isotopes of unbihexium | ||||||
Template:infobox unbihexium isotopes does not exist | ||||||
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