Statements (54)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:chemical_compound
|
| gptkbp:bfsLayer |
5
|
| gptkbp:bfsParent |
gptkb:Mendeleev's_Periodic_Table
gptkb:Philae's_APXS |
| gptkbp:application |
used in electronics
used in nuclear reactors used in magnets used in phosphors used in lasers |
| gptkbp:category |
lanthanide
|
| gptkbp:color |
silvery-white
|
| gptkbp:cooling_system |
0.24 J/(g· K)
11.8 W/(m· K) |
| gptkbp:discovered_by |
gptkb:Jean_Charles_Galissard_de_Marignac
|
| gptkbp:dissolved |
soluble in acids
|
| gptkbp:electronegativity |
1.2 (Pauling scale)
[ Xe] 4f7 5d1 6s2 |
| gptkbp:field |
ferromagnetic at low temperatures
paramagnetic at room temperature |
| https://www.w3.org/2000/01/rdf-schema#label |
gadolinium
|
| gptkbp:isotopes |
gptkb:64
Gd-155 Gd-157 |
| gptkbp:mass |
157.25 u
|
| gptkbp:melting_point |
1312 ° C
3273 ° C |
| gptkbp:number |
231-155-8
|
| gptkbp:population |
7.90 g/cm³
|
| gptkbp:power_output |
11.9 e V
22.1 e V 6.15 e V |
| gptkbp:products |
gadolinium chloride (Gd Cl3)
gadolinium nitrate (Gd(N O3)3) gadolinium oxide (Gd2 O3) gadolinium phosphide (Gd P) gadolinium sulfate (Gd2(S O4)3) |
| gptkbp:safety_features |
handle with care due to toxicity
|
| gptkbp:set_in |
lanthanides
rare earth elements dysprosium terbium |
| gptkbp:side_effect |
toxic in large amounts
|
| gptkbp:social_structure |
+3
hexagonal close-packed |
| gptkbp:species |
~0.0007% by mass
~0.003 g/kg |
| gptkbp:symbol |
Gd
|
| gptkbp:type_of |
7440-54-2
|
| gptkbp:uses |
contrast agent
magnetic resonance imaging (MRI) neutron capture |
| gptkbp:was_a_response_to |
reacts with water
reacts with oxygen |
| gptkbp:year_created |
1880
|