Statements (21)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
isotope
|
| gptkbp:alsoKnownAs |
mesothorium-2
|
| gptkbp:atomicNumber |
89
|
| gptkbp:containsElement |
actinium
|
| gptkbp:decaysTo |
Th-228
|
| gptkbp:discoveredBy |
gptkb:Friedrich_Oskar_Giesel
|
| gptkbp:discoveredIn |
1902
|
| gptkbp:halfLife |
6.15 hours
|
| https://www.w3.org/2000/01/rdf-schema#label |
Ac-228
|
| gptkbp:massNumber |
228
|
| gptkbp:mode |
gptkb:beta_decay
|
| gptkbp:naturalOccurrence |
trace
|
| gptkbp:neutrons |
139
|
| gptkbp:protons |
89
|
| gptkbp:radioactive |
true
|
| gptkbp:series |
thorium series
|
| gptkbp:stable |
false
|
| gptkbp:symbol |
gptkb:Ac
|
| gptkbp:bfsParent |
gptkb:Ra-228
gptkb:actinium-228 |
| gptkbp:bfsLayer |
7
|