 The inert pair effects in livermorium should be even stronger than for polonium and hence the + 2 oxidation state becomes more stable than the + 4 state , which would be stabilized only by the most electronegative ligands ; this is reflected in the expected ionization energies of livermorium , where there are large gaps between the second and third ionization energies ( corresponding to the breaching of the unreactive 7p1 / 2 shell ) and fourth and fifth ionization energies . Indeed , the 7s electrons are expected to be so inert that the + 6 state will not be possible to attain . The melting and boiling points of livermorium are expected to continue the trends down the chalcogens ; thus livermorium should melt at a higher temperature than polonium , but boil at a lower temperature . It should also be denser than polonium ( Lv : 12 @.@ 9 g / cm3 ; α @-@ Po : 9 @.@ 2 g / cm3 ) . The electron of the hydrogen @-@ like livermorium atom ( oxidized so that it only has one electron , Lv115 + ) is expected to move so fast that it has a mass 1 @.@ 86 times that of a stationary electron , due to relativistic effects . For comparison , the figures for hydrogen @-@ like polonium and tellurium are expected to be 1 @.@ 26 and 1 @.@ 080 respectively . 
