Unbitrium (Ubt)
SuperactinideStandard Atomic Weight
N/AElectron configuration
[Og] 5g³ 8s²Melting point
N/ABoiling point
N/ADensity
N/AOxidation states
N/AElectronegativity (Pauling)
N/AIonization energy (1st)
N/ADiscovery year
N/AAtomic radius
N/AUnbitrium is the temporary systematic name for element 123, a hypothetical superheavy element beyond the confirmed periodic table. It has not been synthesized or identified in nature. Chemical discussions of Ubt are therefore predictive and model-dependent. It is expected to belong to the superactinide region of period 8, where relativistic effects and overlapping 5g, 6f, 7d, and 8s orbital energies make simple extrapolation from lighter elements unreliable.
This element has not been synthesized or experimentally confirmed. All listed physicochemical properties are calculated, extrapolated, or model-dependent.
No macroscopic sample of unbitrium exists, and no atom has been confirmed. Its bulk appearance, crystal structure, density, and melting behavior are unknown. Calculations generally treat it as a very heavy metallic element, but this is a prediction rather than an observed property.
Unbitrium has no practical, commercial, medical, or industrial use. If it is ever produced, its use would be limited to nuclear and chemical research, especially studies of superheavy-element stability, decay modes, and the limits of periodic trends. Any chemistry would likely be performed on single atoms or extremely small numbers of atoms, not on weighable material.
No compound of unbitrium has been prepared or observed. No oxidation state has been experimentally assigned. Theoretical work places Ubt among superactinides, where valence behavior may involve closely spaced 5g, 6f, 7d, and 8s levels. Predicted fluorides, oxides, or coordination species are model systems only, and their formulas, stabilities, and bonding cannot be treated as established chemistry.
The safety properties of unbitrium are not experimentally known. Any isotope produced would be radioactive, but isotope-specific half-lives and decay modes remain unconfirmed. In realistic research quantities, the principal hazards would arise from radiation, activated accelerator components, and heavy-ion target materials rather than from chemical toxicity of bulk Ubt, because bulk Ubt is unavailable.
Unbitrium has no confirmed natural occurrence and no known environmental cycle. It has not been detected in minerals, water, air, biological material, meteorites, or cosmic samples. If individual atoms were produced artificially, they would be expected to decay before participating in ordinary environmental transport or geochemical concentration.
Unbitrium has no commodity market, no supply chain, and no economic demand. Production, if achieved, would require specialized nuclear facilities, intense heavy-ion beams, and rare heavy target nuclides, with expected yields at the atom-at-a-time level. The limiting factors would be nuclear reaction probability, target availability, detection sensitivity, and isotope lifetime. It cannot be mined, stockpiled, traded, or recycled as a material.
No extraterrestrial unbitrium has been confirmed. Superheavy nuclei could in principle be formed transiently in extreme neutron-rich nucleosynthesis, but survival depends on nuclear stability that has not been demonstrated for element 123. Any primordial Ubt, if once present with short half-lived isotopes, would have decayed long ago.
- Unbitrium is a temporary IUPAC systematic name, not a discovery name.
- No isotope of element 123 has been confirmed.
- It lies in the predicted superactinide region of period 8.
- Its chemistry is expected to be strongly affected by relativistic orbital effects.
- A future discovery would likely be based on nuclear decay correlations, not bulk isolation.
Images
Properties
Physical
N/A
Chemical
- Electron affinity
- 0.4 eV
- Electron configuration
- [Og] 5g³ 8s²
Thermodynamic
N/A
Nuclear
- Protons
- 123 Compare Protons of all elements →
- Known isotopes
- 0 Compare Known isotopes of all elements →
- Stable isotopes
- 0 Compare Stable isotopes of all elements →
- Natural occurrence
- Not observed
Abundance
N/A
Safety
- Radioactive
- Yes
Crystal Structure
N/A
Electronic Structure
- Electrons per shell
- 2, 8, 18, 32, 35, 18, 8, 2 Compare Electrons per shell of all elements →
Identifiers
- CAS number
- 54576-74-8 Compare CAS number of all elements →
Electron Configuration Predicted
——Electron configuration data not available for this ion.
Atomic model
Isotopes change neutron count, mass, and stability — not the electron configuration of a neutral atom.
N/A
Schematic atomic model, not to scale.
Atomic Fingerprint
Emission / Absorption Spectrum
Isotope Distribution
No stable isotopes.
| Mass number | Atomic mass (u) | Natural abundance | Half-life |
|---|
Phase / State
Phase/state data not available
N/A
Phase/state data not available