Statements (73)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:chemical_compound
|
| gptkbp:bfsLayer |
6
|
| gptkbp:bfsParent |
gptkb:Periodic_Table_of_Elements
|
| gptkbp:category |
lanthanide
|
| gptkbp:color |
silvery-white
green or blue |
| gptkbp:composed_of |
produced in nuclear reactors
|
| gptkbp:cooling_system |
0.12 W/(m· K)
|
| gptkbp:discovered_by |
Charles Glidden
|
| gptkbp:displacement |
can occur with halogens
|
| gptkbp:dissolved |
soluble in acids
|
| gptkbp:electronegativity |
1.1 (Pauling scale)
|
| https://www.w3.org/2000/01/rdf-schema#label |
Promethium
|
| gptkbp:ingredients |
Pm O2
|
| gptkbp:is_found_in |
uranium ores
not found in significant amounts naturally |
| gptkbp:is_used_in |
used in some types of batteries
|
| gptkbp:isotopes |
gptkb:theorem
61 Pm-145 Pm-147 |
| gptkbp:lifespan |
17.7 years (Pm-147)
|
| gptkbp:material |
used in certain metal alloys
|
| gptkbp:melting_point |
1,300 ° C
3,000 ° C |
| gptkbp:named_after |
gptkb:Prometheus
|
| gptkbp:notable_conductors |
0.001 S/m
|
| gptkbp:occurs_in |
rare earth element
|
| gptkbp:population |
7.26 g/cm³
|
| gptkbp:power_output |
5.58 e V
|
| gptkbp:products |
promethium carbonate
promethium chloride promethium fluoride promethium sulfate promethium acetate promethium antimonate promethium arsenate promethium borate promethium bromide promethium carbide promethium chromate promethium hydride promethium hydroxide promethium iodide promethium molybdate promethium niobate promethium nitrate promethium nitride promethium oxalate promethium phosphate promethium phosphide promethium selenate promethium silicate promethium sulfide promethium tantalate promethium tellurate promethium thiocyanate promethium titanate promethium tungstate promethium vanadate promethium zirconate promethium(III) oxide promethium(IV) oxide |
| gptkbp:replaced_by |
Glidden and others
|
| gptkbp:safety_features |
radioactive material handling required
|
| gptkbp:social_structure |
hexagonal close-packed
+3, +2 |
| gptkbp:symbol |
Pm
|
| gptkbp:uses |
gptkb:painting
nuclear batteries research in nuclear physics |
| gptkbp:was_a_response_to |
similar to neodymium
|
| gptkbp:year_created |
1945
|