It is currently not expected that there will be any stable nucleon configurations between lead and small neutron stars (which cannot really be considered "eleme

It is currently not expected that there will be any stable nucleon configurations between lead and small neutron stars (which cannot really be considered "elements"). On the other hand, we don't know how well the current theories describe elements heavier than the ones we managed to generate (not least because we cannot actually produce much heavier elements yet).