| Attribute | Flerovium × | Nihonium × |
|---|---|---|
| Oxidation states |
| - |
| Group name | Post-transition metal | Post-transition metal |
| Discovered (year) | 1998 | 2004 |
| Atomic number | 114 | 113 |
| Electron configuration | [Rn]7s²7p²5f¹⁴6d¹⁰ (predicted) | [Rn]5f¹⁴6d¹⁰7s²7p¹ (predicted) |
| Atomic mass (u) | 290.192 | 286.182 |
| Standard state | Solid (expected) | Solid (expected) |
| Symbol | Fl | Nh |