| Title:  Meitnerium CAS Registry Number:  54038-01-6 Additional Names:  Element 109;  unnilennium Literature References:  Mt, Une; at. no. 109.  Group VIII( 9).  No stable nuclides.  Prepn of isotope 266109 (T½ ~3.5 msec, a-decay) by 209Bi(58Fe,n):  G. Münzenberg et al., Z. Phys. A309, 89 (1982); eidem, ibid. A315, 145 (1984).  Review of synthesis:  G. N. Flerov, G. M. Ter-Akopian, Prog. Particle Nucl. Phys. 19, 197-239 (1987); G. T. Seaborg in Transuranium Elements:  A Half Century, L. R. Morss, J. Fuger, Eds. (Am. Chem. Soc., Washington DC, 1992) p 41-42.  |