Unbibium (Ubb)
SuperactinideNguyên tử khối chuẩn
Không cóCấu hình electron
[Og] 5g² 8s²Nhiệt độ nóng chảy
Không cóNhiệt độ sôi
Không cóKhối lượng riêng
Không cóTrạng thái oxi hóa
Không cóĐộ âm điện (Pauling)
Không cóNăng lượng ion hóa (lần 1)
Không cóNăm phát hiện
Không cóBán kính nguyên tử
Không cóUnbibium is the temporary systematic name for element 122, an undiscovered superheavy element. It is expected to lie beyond oganesson in the region often called the superactinides, where strong relativistic effects and the proximity of 5g, 6f, 7d, and 8p orbitals make simple periodic trends uncertain. No isotope has been confirmed, and all chemical and physical descriptions are theoretical.
This element has not been synthesized or experimentally confirmed. All listed physicochemical properties are calculated, extrapolated, or model-dependent.
No macroscopic sample of unbibium has ever existed. Its color, density, melting point, and crystal structure are unknown. Any description of a metallic appearance would be an extrapolation from neighboring heavy elements, not an observation.
Unbibium has no confirmed commercial, technological, medical, or industrial use. If produced, it would be made atom by atom for nuclear-physics and superheavy-element research, chiefly to test models of shell stabilization, decay modes, and chemical periodicity at very high atomic number. Any proposed application beyond research is speculative because no isotope is known to be available in measurable quantity or with useful longevity.
No compound of unbibium has been prepared or detected. Calculations generally treat it as a superactinide whose valence electrons may be strongly affected by relativistic orbital shifts, so its chemistry may not follow a simple lighter congener. Oxidation states such as +2, +4, or higher states have been considered in theoretical work, but their relative stability is model-dependent. Hypothetical halides or oxides, for example UbbF₄ or UbbO₂, should be regarded as predicted species only.
The safety profile of unbibium is not experimentally known. Any isotope that could be made would be radioactive, and expected handling would occur only in shielded accelerator and radiochemical facilities at atom-at-a-time quantities. External radiation, decay products, and contamination control would dominate practical risk assessment. Chemical toxicity cannot be measured without isolable amounts.
There is no confirmed natural occurrence of unbibium on Earth, and it has no observed environmental cycle. Predicted half-lives for reachable superheavy isotopes are not compatible with persistent environmental reservoirs, though exact values are isotope-dependent and theoretical until discovery. Any atoms produced artificially would decay in controlled laboratory systems rather than enter ordinary environmental pathways.
Unbibium has no commodity market, production industry, or recoverable resource base. A confirmed synthesis would require a heavy-ion accelerator, specialized target materials, and detection of a few decay events, not bulk manufacture. Supply would be limited by beam time, target availability, reaction cross sections, and the lifetimes of produced nuclei. Recycling and substitution are not meaningful economic categories for an element that has not been isolated and has no practical demand.
Unbibium has not been identified in stars, meteorites, cosmic rays, or planetary materials. Superheavy nuclei near this region may be discussed in models of rapid neutron-capture nucleosynthesis or an island of nuclear stability, but no confirmed astrophysical abundance is known. If any such nuclei form naturally, they are expected to be extremely rare and short-lived on cosmic timescales.
- Unbibium is a systematic placeholder name, not a discovery name.
- No isotope of element 122 has been accepted as discovered.
- Its position belongs to the predicted superactinide region.
- Relativistic effects are expected to be central to its chemistry.
- Any chemical formula containing Ubb is hypothetical.
- It has no known biological role or practical supply chain.
Hình ảnh
Tính chất
Vật lý
Không có
Hóa học
- Ái lực electron
- 0,3 eV
- Cấu hình electron
- [Og] 5g² 8s²
Nhiệt động lực học
Không có
Hạt nhân
- Proton
- 122 So sánh Proton của tất cả nguyên tố →
- Các đồng vị đã biết
- 0 So sánh Các đồng vị đã biết của tất cả nguyên tố →
- Đồng vị bền
- 0 So sánh Đồng vị bền của tất cả nguyên tố →
- Sự tồn tại trong tự nhiên
- Chưa được quan sát
Độ phổ biến
Không có
An toàn
- Phóng xạ
- Có
Cấu trúc tinh thể
Không có
Cấu trúc electron
- Số electron trong mỗi lớp
- 2, 8, 18, 32, 34, 18, 8, 2 So sánh Số electron trong mỗi lớp của tất cả nguyên tố →
Mã định danh
- Số CAS
- 54576-73-7 So sánh Số CAS của tất cả nguyên tố →
Cấu hình electron Dự đoán
——Không có dữ liệu cấu hình electron cho ion này.
Mô hình nguyên tử
Các đồng vị khác nhau về số neutron, khối lượng và độ bền — không khác nhau về cấu hình electron của nguyên tử trung hòa.
Không có
Mô hình nguyên tử minh họa, không theo tỷ lệ.
Dấu vân tay nguyên tử
Phổ phát xạ / hấp thụ
Phân bố đồng vị
Không có đồng vị bền.
| Số khối | Khối lượng nguyên tử (u) | Độ phổ biến tự nhiên | Chu kỳ bán rã |
|---|
Pha / Trạng thái
Không có dữ liệu pha/trạng thái
Không có
Không có dữ liệu pha/trạng thái