Statements (13)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:isotope
|
| gptkbp:bfsLayer |
6
|
| gptkbp:bfsParent |
gptkb:francium
|
| gptkbp:discovered_by |
gptkb:Marguerite_Perey
|
| https://www.w3.org/2000/01/rdf-schema#label |
Fr-223
|
| gptkbp:isotopes |
87
|
| gptkbp:lifespan |
22 minutes
|
| gptkbp:mass |
223
|
| gptkbp:mode |
alpha decay
|
| gptkbp:parent |
gptkb:Ra-227
Rn-219 |
| gptkbp:symbol |
Fr
|
| gptkbp:year_created |
gptkb:1940
|