Statements (30)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:chemical_compound
|
| gptkbp:appearance |
silvery-white
|
| gptkbp:atomicNumber |
89
|
| gptkbp:block |
f-block
|
| gptkbp:boilingPoint |
3471 K
|
| gptkbp:CASNumber |
7440-34-8
|
| gptkbp:category |
actinide
|
| gptkbp:crystalSystem |
face-centered cubic
|
| gptkbp:density |
10.07 g/cm3
|
| gptkbp:discoveredBy |
gptkb:Friedrich_Oskar_Giesel
|
| gptkbp:discoveredIn |
1899
|
| gptkbp:electronegativity |
1.1
|
| gptkbp:foundIn |
uranium ores
|
| https://www.w3.org/2000/01/rdf-schema#label |
Ac
|
| gptkbp:isotopes |
gptkb:Ac-227
gptkb:Ac-225 |
| gptkbp:meltingPoint |
1323 K
|
| gptkbp:namedAfter |
actinium (Greek: aktinos, meaning 'ray')
|
| gptkbp:oxidationStates |
+3
|
| gptkbp:period |
7
|
| gptkbp:radioactive |
true
|
| gptkbp:relatedGroup |
3
|
| gptkbp:standardState |
gptkb:stone
|
| gptkbp:symbol |
gptkb:Actinium
|
| gptkbp:uses |
gptkb:nuclear_reactor
radiotherapy |
| gptkbp:bfsParent |
gptkb:Abcoude_railway_station
gptkb:Altocumulus gptkb:actinoid |
| gptkbp:bfsLayer |
7
|