Flerovium(II) should be more stable than lead(II), and polyhalide ions and compounds of types FlX+, FlX2, , and (X = Cl, Br, I) are expected to form readily. The fluorides would undergo strong hydrolysis in aqueous solution. All the flerovium dihalides are expected to be stable, with the difluoride being water-soluble. Spin-orbit effects would destabilize flerovium dihydride (FlH2) by almost . In solution, flerovium would also form the oxyanion flerovite () in aqueous solution, analogous to plumbite. Flerovium(II) sulfate (FlSO4) and sulfide (FlS) should be very insoluble in water, and flerovium(II) acetate (FlC2H3O2) and nitrate (Fl(NO3)2) should be quite water-soluble. The standard electrode potential for the reduction of Fl2+ ions to metallic flerovium is estimated to be around +0.9 V, confirming the increased stability of flerovium in the neutral state. In general, due to the relativistic stabilization of the 7p1/2 spinor, Fl2+ is expected to have properties intermediate between those of Hg2+ or Cd2+ and its lighter congener Pb2+.