Unbitrium (Ubt)
Superactinide標準原子量
データなし電子配置
[Og] 5g³ 8s²融点
データなし沸点
データなし密度
データなし酸化数
データなし電気陰性度（Pauling）
データなし第1イオン化エネルギー
データなし発見年
データなし原子半径
データなしUnbitrium 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.
画像
性質
物理的性質
データなし
化学的性質
- 電子親和力
- 0.4 eV
- 電子配置
- [Og] 5g³ 8s²
熱力学的性質
データなし
原子核
- 陽子数
- 123 全元素の陽子数を比較 →
- 既知の同位体
- 0 全元素の既知の同位体を比較 →
- 安定同位体
- 0 全元素の安定同位体を比較 →
- 天然での存在
- 未観測
存在度
データなし
安全性
- 放射性
- はい
結晶構造
データなし
電子構造
- 各電子殻の電子数
- 2, 8, 18, 32, 35, 18, 8, 2 全元素の各電子殻の電子数を比較 →
識別子
- CAS登録番号
- 54576-74-8 全元素のCAS登録番号を比較 →
電子配置 予測値
——このイオンの電子配置データはありません。
原子モデル
同位体によって中性子数、質量、安定性は変わりますが、中性原子の電子配置は変わりません。
データなし
模式的な原子モデルです。実際の縮尺とは異なります。
原子の指紋
発光／吸収スペクトル
同位体分布
安定同位体はありません。
| 質量数 | 原子質量（u） | 天然存在比 | 半減期 |
|---|
相／状態
相・状態のデータはありません
データなし
相・状態のデータはありません