seaborgium
E107572
Seaborgium is a synthetic, highly radioactive transition metal and transactinide element with the symbol Sg and atomic number 106.
All labels observed (2)
| Label | Occurrences |
|---|---|
| seaborgium canonical | 2 |
| unnilhexium | 1 |
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
chemical element
ⓘ
synthetic element ⓘ transactinide element ⓘ transition metal ⓘ |
| appearance | unknown (no macroscopic samples) ⓘ |
| atomicNumber | 106 ⓘ |
| atomicWeight | [269] ⓘ |
| belongsToGroup | chromium group ⓘ |
| belongsToSeries |
6d transition metals
ⓘ
transactinides ⓘ |
| block | d-block ⓘ |
| CASNumber | 54038-81-2 ⓘ |
| chemicalSymbol | Sg ⓘ |
| controversy | discovery credit dispute between Berkeley and Dubna teams ⓘ |
| discoveredAt |
Joint Institute for Nuclear Research
ⓘ
Lawrence Berkeley National Laboratory ⓘ |
| discoverer |
Albert Ghiorso
ⓘ
American–Soviet collaboration ⓘ |
| discoveryYear | 1974 ⓘ |
| electronConfiguration | [Rn] 5f14 6d4 7s2 (predicted) ⓘ |
| elementCategory | transition metal ⓘ |
| elementInPeriodicTable | yes ⓘ |
| formerProposedName |
seaborgium
self-linksurface differs
ⓘ
surface form:
unnilhexium
|
| formerSystematicSymbol | Unh ⓘ |
| group | 6 ⓘ |
| isotopesCountObserved | a few isotopes observed ⓘ |
| IUPACApprovalYear | 1997 ⓘ |
| IUPACName | seaborgium self-link ⓘ |
| mostStableIsotope | seaborgium-269 ⓘ |
| mostStableIsotopeHalfLife | approximately 3.1 minutes ⓘ |
| namedAfter | Glenn T. Seaborg ⓘ |
| naturalOccurrence |
does not occur naturally
ⓘ
produced artificially ⓘ |
| neutronNumberMostStableIsotope | 163 ⓘ |
| nuclearCharge | +106 ⓘ |
| oxidationState |
+3
ⓘ
+4 ⓘ +5 ⓘ +6 ⓘ |
| period | 7 ⓘ |
| predictedChemistry |
similar to molybdenum
ⓘ
similar to tungsten ⓘ |
| primaryUse | scientific research ⓘ |
| productionMethod | heavy-ion nuclear reactions ⓘ |
| protonCount | 106 ⓘ |
| radioactivity | highly radioactive ⓘ |
| standardState | solid (predicted) ⓘ |
| uses | no significant commercial applications ⓘ |
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
unnilhexium