Statements (23)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
isotope
potassium atom |
| gptkbp:atomicNumber |
19
|
| gptkbp:decaysTo |
argon-40 atom
calcium-40 atom |
| gptkbp:discoveredBy |
gptkb:Bertram_Boltwood
|
| gptkbp:discoveredIn |
1907
|
| gptkbp:foundIn |
Earth's crust
|
| gptkbp:halfLife |
1.248×10^9 years
|
| https://www.w3.org/2000/01/rdf-schema#label |
potassium-40 atom
|
| gptkbp:massNumber |
40
|
| gptkbp:mode |
electron capture
beta minus decay |
| gptkbp:naturalAbundance |
0.0117%
|
| gptkbp:neutrons |
21
|
| gptkbp:parent |
potassium
|
| gptkbp:protons |
19
|
| gptkbp:radioactive |
true
|
| gptkbp:symbol |
gptkb:40K
|
| gptkbp:usedIn |
gptkb:geochronology
radiometric dating |
| gptkbp:bfsParent |
gptkb:Fermi-Dirac_condensate
|
| gptkbp:bfsLayer |
7
|