Statements (16)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
isotope
|
| gptkbp:atomicNumber |
89
|
| gptkbp:containsElement |
actinium
|
| gptkbp:decaysTo |
francium-217
|
| gptkbp:discoveredBy |
gptkb:Friedrich_Oskar_Giesel
|
| gptkbp:discoveredIn |
1902
|
| gptkbp:halfLife |
1.44 minutes
|
| https://www.w3.org/2000/01/rdf-schema#label |
actinium-221
|
| gptkbp:massNumber |
221
|
| gptkbp:mode |
alpha decay
|
| gptkbp:neutrons |
132
|
| gptkbp:protons |
89
|
| gptkbp:radioactive |
true
|
| gptkbp:symbol |
Ac-221
|
| gptkbp:bfsParent |
gptkb:radium-225
|
| gptkbp:bfsLayer |
7
|