Statements (22)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
isotope
|
| gptkbp:atomicNumber |
55
|
| gptkbp:category |
alkali metal isotope
|
| gptkbp:containsElement |
gptkb:cesium
|
| gptkbp:definingTransition |
hyperfine transition
|
| gptkbp:definingTransitionFrequency |
9,192,631,770 Hz
|
| gptkbp:discoveredBy |
gptkb:Fritz_Houtermans
gptkb:Arthur_Jeffrey_Dempster |
| gptkbp:discoveredIn |
1938
|
| https://www.w3.org/2000/01/rdf-schema#label |
Cesium-133
|
| gptkbp:massNumber |
133
|
| gptkbp:mode |
stable (no decay)
|
| gptkbp:naturalAbundance |
100%
|
| gptkbp:neutrons |
78
|
| gptkbp:protons |
55
|
| gptkbp:spin |
7/2+
|
| gptkbp:stable |
true
|
| gptkbp:symbol |
gptkb:133Cs
|
| gptkbp:usedFor |
definition of the second (SI unit of time)
|
| gptkbp:usedIn |
gptkb:atomic_clocks
|
| gptkbp:bfsParent |
gptkb:Xenon-133
|
| gptkbp:bfsLayer |
6
|