Unbiennium (Ube)
SuperactinidePeso atômico padrão
N/DConfiguração eletrônica
[Og] 5g⁹ 8s²Ponto de fusão
N/DPonto de ebulição
N/DDensidade
N/DEstados de oxidação
N/DEletronegatividade (Pauling)
N/DEnergia de ionização (1ª)
N/DAno da descoberta
N/DRaio atômico
N/DUnbiennium is the temporary systematic name for the hypothetical element with proton number 129. It has not been synthesized or observed in nature. Periodic-table extrapolations place it among the superheavy elements of the predicted eighth period, probably in the superactinide or g-block region. Its chemistry is expected to be strongly affected by relativistic and spin-orbit effects, so simple analogies with lighter elements are unreliable.
This element has not been synthesized or experimentally confirmed. All listed physicochemical properties are calculated, extrapolated, or model-dependent.
No atoms or macroscopic sample of unbiennium have been reported. Its appearance, density, melting point, crystal structure, and other bulk physical properties are unknown; published values, where given, are theoretical predictions only.
Unbiennium has no confirmed practical, commercial, medical, or industrial use. If it is ever produced, the first uses would be in nuclear-structure research, tests of superheavy-element synthesis, and decay-chain studies. Such work would involve individual atoms or very small numbers of atoms, not usable quantities of material. Any proposed applications based on unusual electronic structure remain speculative because no isotope or compound has been made.
No compounds of unbiennium are known. The element is expected to have very complex superheavy chemistry, with valence levels involving predicted 5g, 6f, 7d, and 8p orbitals rather than a simple main-group pattern. Oxidation states, ionic radii, bonding preferences, and ligand chemistry are therefore theoretical. Calculations may discuss possible halides, oxides, or molecular ions, but these are model species rather than experimentally characterized compounds.
No direct safety data exist for unbiennium. Any isotope made in a laboratory would almost certainly be radioactive and extremely scarce, so the principal hazard would be radiation from the atoms and their decay products rather than chemical toxicity of bulk material. Handling would be limited to shielded nuclear-research equipment designed for atom-at-a-time detection.
Unbiennium has no confirmed natural occurrence and no known environmental cycle. Because no isotope has been observed, its persistence, mobility, and chemical behavior in air, water, soil, or organisms are unknown. If produced experimentally, only isolated atoms would be generated, and they would decay or be retained within laboratory apparatus rather than enter the environment as a material flow.
Unbiennium has no commodity market, no practical supply chain, and no established demand outside possible basic research. Future production, if achieved, would require heavy-ion accelerator experiments using rare targets and intense beams, with expected yields far below macroscopic quantities. Costs would be dominated by accelerator operation, target preparation, detection systems, and repeated attempts at synthesis rather than by separable material value. Recycling or stockpiling is not meaningful for an element not yet made.
Unbiennium has not been detected in the universe. Standard models do not predict stable primordial quantities of such a high-proton element, and any isotopes formed in extreme nucleosynthetic events would be expected to be short-lived unless an unconfirmed island of enhanced stability includes suitable nuclei. Its extraterrestrial relevance is therefore theoretical.
- Ube is a temporary systematic symbol, not a permanent element name.
- The name unbiennium encodes the digits 1, 2, and 9 in IUPAC systematic nomenclature.
- Any confirmed isotope would probably be identified from a decay chain rather than by weighing a sample.
- Predicted chemistry may be less periodic than the name’s position suggests because nearby orbitals are closely spaced.
Imagens
Propriedades
Física
N/D
Química
- Afinidade eletrônica
- 0,5 eV
- Configuração eletrônica
- [Og] 5g⁹ 8s²
Termodinâmica
N/D
Nuclear
- Prótons
- 129 Comparar Prótons de todos os elementos →
- Isótopos conhecidos
- 0 Comparar Isótopos conhecidos de todos os elementos →
- Isótopos estáveis
- 0 Comparar Isótopos estáveis de todos os elementos →
- Ocorrência natural
- Não observado
Abundância
N/D
Segurança
- Radioativo
- Sim
Estrutura cristalina
N/D
Estrutura eletrônica
- Elétrons por camada
- 2, 8, 18, 32, 41, 18, 8, 2 Comparar Elétrons por camada de todos os elementos →
Identificadores
- Número CAS
- 54576-80-6 Comparar Número CAS de todos os elementos →
Configuração eletrônica Previsto
——Dados de configuração eletrônica indisponíveis para este íon.
Modelo atômico
Os isótopos alteram o número de nêutrons, a massa e a estabilidade — não a configuração eletrônica de um átomo neutro.
N/D
Modelo atômico esquemático, sem escala.
Assinatura atômica
Espectro de emissão / absorção
Distribuição isotópica
Sem isótopos estáveis.
| Número de massa | Massa atômica (u) | Abundância natural | Meia-vida |
|---|
Fase / Estado
Dados de fase/estado indisponíveis
N/D
Dados de fase/estado indisponíveis