 Unambiguous determination of the chemical characteristics of livermorium has not yet been established . In 2011 , experiments were conducted to create ununtrium , flerovium , and ununpentium isotopes in the reactions between calcium @-@ 48 projectiles and targets of americium @-@ 243 and plutonium @-@ 244 . The targets included lead and bismuth impurities and hence some isotopes of bismuth and polonium were generated in nucleon transfer reactions . This , while an unforeseen complication , could give information that would help in the future chemical investigation of the heavier homologs of bismuth and polonium , which are respectively ununpentium and livermorium . The produced nuclides bismuth @-@ 213 and polonium @-@ 212m were transported as the hydrides 213BiH3 and 212mPoH2 at 850 ° C through a quartz wool filter unit held with tantalum , showing that these hydrides were surprisingly thermally stable , although their heavier congeners UupH3 and LvH2 would be expected to be less thermally stable from simple extrapolation of periodic trends in the p @-@ block . Further calculations on the stability and electronic structure of BiH3 , UupH3 , PoH2 , and LvH2 are needed before chemical investigations take place . Ununpentium and livermorium are expected to be volatile enough as pure elements for them to be chemically investigated in the near future , a property livermorium would then share with its lighter congener polonium . The chief barrier to their chemical investigation at present is the lack of known isotopes of these elements which are long @-@ lived enough . 
