Statements (35)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:chemical_compound
|
| gptkbp:appearance |
silvery gray metal
|
| gptkbp:atomicNumber |
72
|
| gptkbp:atomicWeight |
178.49
|
| gptkbp:block |
d-block
|
| gptkbp:boilingPoint |
4876°C
|
| gptkbp:CASNumber |
7440-58-6
|
| gptkbp:category |
transition metal
|
| gptkbp:crystalSystem |
hexagonal close-packed
|
| gptkbp:density |
13.31 g/cm³
|
| gptkbp:discoveredBy |
gptkb:George_de_Hevesy
gptkb:Dirk_Coster |
| gptkbp:discoveredIn |
1923
|
| gptkbp:electronConfiguration |
[Xe] 4f14 5d2 6s2
|
| gptkbp:electronegativity |
1.3 (Pauling scale)
|
| gptkbp:foundIn |
gptkb:Netherlands
zirconium minerals |
| https://www.w3.org/2000/01/rdf-schema#label |
Hafnia
|
| gptkbp:isotopes |
Hf-174
Hf-176 Hf-177 Hf-178 Hf-179 Hf-180 |
| gptkbp:meltingPoint |
2506°C
|
| gptkbp:namedAfter |
gptkb:Copenhagen
|
| gptkbp:oxidationStates |
+4
|
| gptkbp:period |
6
|
| gptkbp:relatedGroup |
4
|
| gptkbp:symbol |
Hf
|
| gptkbp:uses |
electronics
alloys nuclear control rods |
| gptkbp:bfsParent |
gptkb:Hafniaceae
|
| gptkbp:bfsLayer |
7
|