Nihonium (Nh, Z = 113): atomic energy levels
No energy level diagram can be drawn for neutral nihonium: 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-solid chromatography of single 284Nh atoms: adsorption enthalpy on silicon oxide -dH_ads = 58 (+8/-3) kJ/mol, a chemical (not spectroscopic) quantity.
| Quantity | Value | Source |
|---|---|---|
| Ground configuration | [Rn] 5f14 6d10 7s2 7p theory | V.A. Dzuba, V.V. Flambaum, Hyperfine Interact. 237, 160 (2016), arXiv:1608.03048v2, p. 6 Table 3 |
| Ground term | 2P°1/2 theory | V.A. Dzuba, V.V. Flambaum, Hyperfine Interact. 237, 160 (2016), arXiv:1608.03048v2, p. 6 Table 3 |
| First ionisation energy | 7.37 eV theory | V.A. Dzuba, V.V. Flambaum, Hyperfine Interact. 237, 160 (2016), arXiv:1608.03048v2, p. 6 Table 3 and p. 8 Table 6 |
| Longest-lived isotope | 286Nh, half-life 12 ± 5 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 286Nh |
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 7p 2P*1/2 (ground) | 7s2 8s 2S1/2 | 36665 | 272.7 | E1 | – | V.A. Dzuba, V.V. Flambaum, Hyperfine Interact. 237, 160 (2016), arXiv:1608.03048v2, p. 6 Table 3 |
| 7s2 7p 2P*1/2 (ground) | 7s2 7d 2D3/2 | 48768 | 205.1 | E1 | – | V.A. Dzuba, V.V. Flambaum, Hyperfine Interact. 237, 160 (2016), arXiv:1608.03048v2, p. 6 Table 3 |
| 7s2 7p 2P*1/2 (ground) | 7s2 9s 2S1/2 | 49774 | 200.9 | E1 | – | V.A. Dzuba, V.V. Flambaum, Hyperfine Interact. 237, 160 (2016), arXiv:1608.03048v2, p. 6 Table 3 |