 The daughter flerovium isotope had properties matching those of a flerovium isotope first synthesized in June 1999 , which was originally assigned to 288Fl , implying an assignment of the parent livermorium isotope to <unk> . Later work in December 2002 indicated that the synthesized flerovium isotope was actually 289Fl , and hence the assignment of the synthesized livermorium atom was correspondingly altered to 293Lv . 
