Flerovium (Fl, Z = 114): atomic energy levels
No energy level diagram can be drawn for neutral flerovium: no excited level of the atom has been measured, so there is no observed transition to show. This page lists what is known instead, and marks every calculated number as theory.
What has been measured
No atomic-physics measurement. Only gas-phase adsorption chromatography of single atoms on gold and silicon oxide surfaces (first study: -dH_ads on gold = 34 (+54/-11) kJ/mol, quoted second-hand from Eichler et al. 2010); a volatile, weakly reactive metal.
| Quantity | Value | Source |
|---|---|---|
| Ground configuration | [Rn] 5f14 6d10 7s2 7p2 theory | V.A. Dzuba, V.V. Flambaum, Hyperfine Interact. 237, 160 (2016), arXiv:1608.03048v2, p. 7 Table 4 |
| Ground term | 1S0 theory | V.A. Dzuba, V.V. Flambaum, Hyperfine Interact. 237, 160 (2016), arXiv:1608.03048v2, p. 7 Table 4 |
| First ionisation energy | 8.37 eV theory | V.A. Dzuba, V.V. Flambaum, Hyperfine Interact. 237, 160 (2016), arXiv:1608.03048v2, p. 7 Table 4 and p. 8 Table 6 |
| Longest-lived isotope | 289Fl, half-life 2.1 ± 0.6 s | NUBASE2020: F.G. Kondev, M. Wang, W.J. Huang, S. Naimi, G. Audi, Chin. Phys. C 45, 030001 (2021), machine-readable table nubase_4.mas20.txt, line for 289Fl |
Calculated transitions from the ground state
Theory only: none of these lines has been observed. Wavelengths are converted from the calculated level energies.
| Lower level | Upper level | Energy (cm⁻¹) | λ vacuum (nm) | Type | A (s⁻¹) theory | Source |
|---|---|---|---|---|---|---|
| 7s2 7p2 1S0 (ground, J=0) | 7s2 8s7p 3P*1 | 44362 | 225.4 | E1 | – | V.A. Dzuba, V.V. Flambaum, Hyperfine Interact. 237, 160 (2016), arXiv:1608.03048v2, p. 7 Table 4 |
| 7s2 7p2 1S0 (ground, J=0) | 7s2 7p7d 1P*1 | 57244 | 174.7 | E1 | – | V.A. Dzuba, V.V. Flambaum, Hyperfine Interact. 237, 160 (2016), arXiv:1608.03048v2, p. 7 Table 4 |