Flerovium
unknown, probably post-transition metal · period 7 · group 14 · p-block
Flerovium is a superheavy artificial chemical element with the symbol Fl and atomic number 114. It is an extremely radioactive synthetic element.
What the numbers say
At standard temperature and pressure Flerovium is a solid, sitting in period 7, group 14 of the p-block.
Its melting point of 340 K (67 °C) is the 90th highest of the 110 elements with a measured value — mid-range among the elements.
First identified in 1998.
Check it against computed structures
The structure search queries the Materials Project, OQMD and the Open Materials Database for computed crystal structures containing Fl — with DFT formation energy, hull stability and band gap where the provider publishes them.
K 2 · L 8 · M 18 · N 32 · O 32 · P 18 · Q 4
Properties
| Atomic number | 114 |
|---|---|
| Atomic mass | 289 u |
| Series | unknown, probably post-transition metal |
| Group | 14 |
| Period | 7 |
| Block | p-block |
| Phase at STP | Solid |
| Melting point | 340 K (67 °C) |
| Boiling point | 420 K (147 °C) |
| Electron configuration | *[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p² |
| Discovered | 1998 |
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See Fl in context with all 118 elements.
Working with flerovium in a real design?
Ask the materials chat how Fl behaves in your alloy system, what it does to weldability, and which grades to look at — with the source of every number named.