Unbiennium (Ube)
Superactinide标准原子量
暂无电子排布
[Og] 5g⁹ 8s²熔点
暂无沸点
暂无密度
暂无氧化态
暂无电负性（鲍林）
暂无第一电离能
暂无发现年份
暂无原子半径
暂无Unbiennium 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.
图片
性质
物理性质
暂无
化学性质
- 电子亲和能
- 0.5 eV
- 电子排布
- [Og] 5g⁹ 8s²
热力学性质
暂无
核性质
- 质子
- 129 比较所有元素的质子 →
- 已知同位素
- 0 比较所有元素的已知同位素 →
- 稳定同位素
- 0 比较所有元素的稳定同位素 →
- 天然存在形式
- 未观测到
丰度
暂无
安全
- 放射性
- 是
晶体结构
暂无
电子结构
- 各电子层电子数
- 2, 8, 18, 32, 41, 18, 8, 2 比较所有元素的各电子层电子数 →
标识符
- CAS登记号
- 54576-80-6 比较所有元素的CAS登记号 →
电子排布 预测值
——暂无该离子的电子排布数据。
原子模型
不同同位素的中子数、质量和稳定性不同，但中性原子的电子排布不变。
暂无
原子模型示意图，未按比例绘制。
原子指纹
发射 / 吸收光谱
同位素分布
无稳定同位素。
| 质量数 | 原子质量（u） | 天然丰度 | 半衰期 |
|---|
物相 / 状态
暂无物相/状态数据
暂无
暂无物相/状态数据