Unbioctium (Ubo)
Superactinide표준 원자량
해당 없음전자 배치
[Og] 5g⁸ 8s²녹는점
해당 없음끓는점
해당 없음밀도
해당 없음산화 상태
해당 없음전기 음성도(Pauling)
해당 없음제1 이온화 에너지
해당 없음발견 연도
해당 없음원자 반지름
해당 없음Unbioctium is the temporary systematic name for element 128, a predicted superheavy element that has not been synthesized or observed. It would lie in the superactinide region of extended periodic tables. Its chemical character is unknown, because relativistic effects and the close spacing of 5g, 6f, 7d, and 8p levels make simple extrapolation unreliable. Any discussion of its properties is theoretical.
This element has not been synthesized or experimentally confirmed. All listed physicochemical properties are calculated, extrapolated, or model-dependent.
No macroscopic sample of unbioctium exists, and even single atoms have not been reported. Its color, density, melting point, crystal structure, and other bulk physical properties are therefore unknown. Published descriptions of appearance would be predictions only.
Unbioctium has no confirmed practical, commercial, medical, or industrial use. If it is ever produced, the initial use would be limited to nuclear-physics research, such as identifying decay chains, measuring half-lives, and testing models of superheavy nuclear stability. Chemical study would require atom-at-a-time methods and would depend on isotopes surviving long enough for separation or gas-phase experiments.
No compound of unbioctium has been made or detected. Its possible chemistry is inferred only from electronic-structure calculations for superheavy atoms. Models generally expect positive oxidation states if chemical reactions can be observed, but the likely range is not securely established. Relativistic orbital contraction and expansion may alter trends relative to lighter actinides and transactinides, so predicted fluorides, oxides, or coordination species should be treated as hypothetical rather than characterized substances.
The safety properties of unbioctium are not experimentally known. Any isotope that could be produced would almost certainly be radioactive and made in extremely small numbers of atoms. The practical hazard in a synthesis experiment would come mainly from accelerator operations, target materials, recoil separators, and decay radiation from short-lived products. Chemical toxicity cannot be assessed from observation.
There is no confirmed natural occurrence of unbioctium and no evidence for an environmental cycle. Any atoms produced in a laboratory would decay before they could disperse as a persistent contaminant. Environmental behavior such as solubility, adsorption, bioaccumulation, or mobility is therefore unmeasured and can only be modeled from uncertain chemical analogies.
Unbioctium has no commodity market, no recoverable source, and no supply chain. Production, if achieved, would require heavy-ion fusion experiments using specialized accelerators, rare targets, and sensitive detection systems. Yields would be expected to be atom-at-a-time, not material quantities. Economic discussion is therefore limited to the cost and feasibility of research campaigns, target preparation, beam time, and detector operation rather than trade in the element itself.
Unbioctium has not been identified in nature, meteorites, stellar spectra, or cosmic-ray material. Nuclei with this charge would be far beyond the long-lived primordial nuclides known on Earth. Astrophysical nucleosynthesis might transiently pass through very heavy nuclei in extreme neutron-rich events, but survival of element 128 to observable times is unconfirmed.
- Unbioctium is a systematic placeholder name, not a discovery name.
- No isotope of element 128 has been accepted as synthesized.
- Predicted chemistry is especially uncertain because several valence shells may be close in energy.
- A nucleus with 128 protons and 184 neutrons would have mass number 312.
- Any first identification would likely rely on correlated radioactive decays, not weighing a sample.
이미지
특성
물리적 특성
해당 없음
화학적 특성
- 전자 친화도
- 0.5 eV
- 전자 배치
- [Og] 5g⁸ 8s²
열역학적 특성
해당 없음
핵 특성
- 양성자 수
- 128 모든 원소의 양성자 수 비교 →
- 알려진 동위원소 수
- 0 모든 원소의 알려진 동위원소 수 비교 →
- 안정 동위원소 수
- 0 모든 원소의 안정 동위원소 수 비교 →
- 자연 존재 형태
- 관측되지 않음
존재비
해당 없음
안전
- 방사성
- 예
결정 구조
해당 없음
전자 구조
- 전자껍질별 전자 수
- 2, 8, 18, 32, 40, 18, 8, 2 모든 원소의 전자껍질별 전자 수 비교 →
식별자
- CAS 등록 번호
- 54576-79-3 모든 원소의 CAS 등록 번호 비교 →
전자 배치 예측값
——이 이온의 전자 배치 데이터가 없습니다.
원자 모형
동위원소에 따라 중성자 수, 질량, 안정성은 달라지지만, 중성 원자의 전자 배치는 달라지지 않습니다.
해당 없음
개략적인 원자 모형이며 실제 비율과 다릅니다.
원자 지문
방출 / 흡수 스펙트럼
동위원소 분포
안정 동위원소가 없습니다.
| 질량수 | 원자 질량(u) | 천연 존재비 | 반감기 |
|---|
상 / 상태
상/상태 데이터 없음
해당 없음
상/상태 데이터 없음