Flerovium (Fl)
Flerovium is element 114, a post-transition metal in period 7, group 14 of the periodic table. At room temperature it is of unknown state (too few atoms have ever been made).
Electron configuration [Rn] 5f14 6d10 7s2 7p2
Electrons per shell 2, 8, 18, 32, 32, 18, 4
Flerovium data
| Atomic number | 114 |
|---|---|
| Symbol | Fl |
| Atomic mass | [289] (mass number of the longest-lived isotope) |
| Category | Post-transition metal |
| Group | 14 |
| Period | 7 |
| Block | p |
| State at 25 °C | unknown |
| Melting point | — |
| Boiling point | — |
| Density | — |
| Electronegativity (Pauling) | — |
| Atomic radius | — |
| 1st ionization energy | — |
| Electron affinity | — |
| Oxidation states | 0 |
| Common ion charge | — |
| Discovered | 1998 |
Orbital diagram
Each box is one orbital holding up to two electrons of opposite spin. Following Hund’s rule, electrons spread out singly across a subshell before pairing.
Work through flerovium’s configuration and its ions →
Where flerovium sits
Flerovium belongs to the post-transition metals. To use its mass in a calculation, try the molar mass calculator.
Flerovium FAQ
What is the electron configuration of flerovium?
Flerovium (Z = 114) has the configuration 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p6 5f14 6d10 7s2 7p2. In noble-gas shorthand that is [Rn] 5f14 6d10 7s2 7p2.
How many valence electrons does flerovium have?
4 (outer shell (n = 7)).
What is the atomic mass of flerovium?
Flerovium has no stable isotopes. Its most stable known isotope has mass number 289, so tables list [289].
Is flerovium a metal?
Yes. Flerovium is a post-transition metal.