Statements (35)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
isotope
|
| gptkbp:bindingEnergyPerNucleon |
7.073 MeV
|
| gptkbp:commonName |
alpha particle
|
| gptkbp:containsElement |
gptkb:helium
|
| gptkbp:discoveredBy |
gptkb:Norman_Lockyer
gptkb:Pierre_Janssen |
| gptkbp:discoveredIn |
1868
|
| gptkbp:formsSuperfluid |
true
|
| https://www.w3.org/2000/01/rdf-schema#label |
4He
|
| gptkbp:isBoson |
true
|
| gptkbp:isomerOf |
gptkb:helium
|
| gptkbp:isotopicSpin |
0
|
| gptkbp:isotopicSymbol |
gptkb:4He
gptkb:He-4 gptkb:helium-4 |
| gptkbp:massNumber |
4
4.00260325413 u |
| gptkbp:mode |
gptkb:standard
|
| gptkbp:naturalAbundance |
99.99986%
|
| gptkbp:neutrons |
2
|
| gptkbp:producedBy |
gptkb:Big_Bang_nucleosynthesis
alpha decay stellar nucleosynthesis |
| gptkbp:protons |
2
|
| gptkbp:spin |
0
|
| gptkbp:stable |
true
|
| gptkbp:superfluidTransitionTemperature |
2.17 K
|
| gptkbp:symbol |
gptkb:4He
|
| gptkbp:usedIn |
cryogenics
nuclear fusion superfluidity research helium dating |
| gptkbp:bfsParent |
gptkb:helium-4_atoms
gptkb:helium-4 |
| gptkbp:bfsLayer |
6
|