Statements (18)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
isotope
|
| gptkbp:atomicNumber |
87
|
| gptkbp:containsElement |
francium
|
| gptkbp:decaysTo |
gptkb:Ra-223
|
| gptkbp:discoveredBy |
gptkb:Marguerite_Perey
|
| gptkbp:discoveredIn |
1939
|
| gptkbp:halfLife |
21.8 minutes
|
| https://www.w3.org/2000/01/rdf-schema#label |
Fr-223
|
| gptkbp:massNumber |
223
|
| gptkbp:mode |
gptkb:beta_decay
|
| gptkbp:naturalOccurrence |
trace
|
| gptkbp:neutrons |
136
|
| gptkbp:parent |
gptkb:Ac-227
|
| gptkbp:protons |
87
|
| gptkbp:radioactive |
true
|
| gptkbp:symbol |
223Fr
|
| gptkbp:bfsParent |
gptkb:Francium-223
|
| gptkbp:bfsLayer |
7
|