Element 112
Structural Formula Vector Image
Title: Element 112
CAS Registry Number: 54084-26-3
Additional Names: Ununbium
Literature References: Uub; at. no. 112. Group IIb (12). Transuranium element. No stable nuclides. Prepn and decay of isotope 277112 (T½ ~240 msec, a decay) by 208Pb(70Zn,n): S. Hoffmann et al., Z. Phys. A 354, 229 (1996); of isotope 283112 (T½ ~81 sec, decay by SF) by 238U(48Ca,3n): Y. T. Oganessian et al., Eur. Phys. J. A 5, 63 (1999). Observation of 281112 as decay product of isotope 285114 (T½ ~890-450+1300 msec, a decay): V. Ninov et al., Phys. Rev. Lett. 83, 1104 (1999). Synthesis and decay chains: S. Hofmann et al, Eur. Phys. J. A 14, 147 (2002); Y. T. Oganessian et al., ibid. 19, 3 (2004). Review of production and properties: S. Hofmann, Rep. Prog. Phys. 61, 639-689 (1998).

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