Element 114
Title: Element 114
CAS Registry Number: 54085-16-4
Additional Names: Ununquadium
Literature References: Uuq; at. no. 114. Group IVa (14). Transuranium element. No stable nuclides. Prepn and decay of isotope 287114 (T½ 1.32 sec, a decay) by 242Pu(48Ca,3n): Y. T. Oganessian et al., Nature 400, 242 (1999); of isotope 289114 (T½ 30.4 sec, a decay) by 244Pu(48Ca,3n): eidem, Phys. Rev. Lett. 83, 3154 (1999). Observation of isotope 285114 (T½ 580 -280+870 msec, a decay) as decay product of 293118: V. Ninov et al., ibid. 1104. Review of production and properties: G. Münzenberg, Proc. 7th Int. Conf. Clustering Aspects, Nucl. Struct. Dyn. 2000, 377-385. Historical review: Y. T. Oganessian et al., Sci. Am. 282, 63-67 (2000).

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