Statements (64)
| 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 medical imaging
used in military applications used in aerospace components used in electronics used in telecommunications used in semiconductor manufacturing used in scientific instruments used in space exploration used in high-speed trains used in nuclear weapons used in automotive components used in gyroscopes used in heat exchangers used in high-performance alloys used in laser technology used in nuclear fusion research used in optical components used in particle accelerators used in precision instruments used in rocket propulsion systems used in satellite technology used in sporting equipment used in vacuum tubes |
| gptkbp:color |
gray
|
| gptkbp:cooling_system |
200 W/(m· K)
|
| gptkbp:difficulty |
5.5 on Mohs scale
|
| gptkbp:discovered_by |
gptkb:Louis-Nicolas_Vauquelin
|
| gptkbp:dissolved |
insoluble in water
|
| gptkbp:electronegativity |
1.57
|
| gptkbp:environmental_impact |
toxic if inhaled
|
| gptkbp:historical_period |
2
|
| https://www.w3.org/2000/01/rdf-schema#label |
beryllium
|
| gptkbp:isotopes |
gptkb:4
Be-10 Be-7 Be-9 |
| gptkbp:location |
extracted from bertrandite
extracted from beryl |
| gptkbp:material |
beryllium copper
beryllium aluminum |
| gptkbp:melting_point |
1287 ° C
2469 ° C |
| gptkbp:members |
alkaline earth metals
|
| gptkbp:notable_conductors |
high
|
| gptkbp:occurs_in |
found in minerals like beryl
found in minerals like chrysoberyl rare in the Earth's crust |
| gptkbp:population |
1.848 g/cm³
|
| gptkbp:safety_features |
requires handling precautions
requires respiratory protection requires skin protection |
| gptkbp:social_structure |
hexagonal close-packed
|
| gptkbp:symbol |
Be
|
| gptkbp:uses |
aerospace applications
nuclear reactors X-ray windows |
| gptkbp:was_a_response_to |
reacts with acids
reacts with alkalis forms a protective oxide layer |
| gptkbp:year_created |
1798
|