beryllium
E460131
Beryllium is a lightweight, hard, gray alkaline earth metal used in specialized applications such as aerospace components, nuclear reactors, and X-ray equipment.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| beryllium is a chemical element | 1 |
Statements (69)
| Predicate | Object |
|---|---|
| instanceOf |
alkaline earth metal
ⓘ
chemical element ⓘ metal ⓘ |
| alloyWith |
aluminum
ⓘ
copper ⓘ magnesium ⓘ nickel ⓘ |
| appearance |
gray
ⓘ
steel-gray ⓘ |
| atomicNumber | 4 ⓘ |
| block | s-block ⓘ |
| boilingPoint | 2469 °C ⓘ |
| CASNumber | 7440-41-7 ⓘ |
| chemicalSymbol | Be ⓘ |
| commonAlloy | beryllium copper ⓘ |
| corrosionResistance | good in air ⓘ |
| countryProduction |
China
NERFINISHED
ⓘ
Kazakhstan NERFINISHED ⓘ United States NERFINISHED ⓘ |
| crystalStructure | hexagonal close-packed ⓘ |
| densityAtRoomTemperature | 1.85 g/cm³ ⓘ |
| discoveredBy | Louis Nicolas Vauquelin NERFINISHED ⓘ |
| discoveryYear | 1798 ⓘ |
| elasticModulus | high ⓘ |
| electricalConductivity | good ⓘ |
| electronegativityPauling | 1.57 ⓘ |
| elementCategory | alkaline earth metal ⓘ |
| formsOxide | beryllium oxide ⓘ |
| formsProtectiveOxideLayer | true ⓘ |
| group | 2 ⓘ |
| ionizationEnergyFirst | 9.3227 eV ⓘ |
| isBrittle | true ⓘ |
| isHard | true ⓘ |
| isLightweight | true ⓘ |
| isMonoisotopic | true ⓘ |
| isToxic | true ⓘ |
| magneticOrdering | diamagnetic ⓘ |
| meltingPoint | 1287 °C ⓘ |
| nameOrigin | Greek word beryllos ⓘ |
| naturalIsotope | beryllium-9 ⓘ |
| neutronAbsorptionCrossSection | low ⓘ |
| occursInMineral |
bertrandite
ⓘ
beryl ⓘ |
| oxidationState | +2 ⓘ |
| oxideFormula | BeO ⓘ |
| oxideProperty | amphoteric ⓘ |
| period | 2 ⓘ |
| poissonsRatio | low ⓘ |
| radioisotope |
beryllium-10
NERFINISHED
ⓘ
beryllium-7 ⓘ |
| standardAtomicWeight | 9.0122 ⓘ |
| thermalConductivity | high ⓘ |
| thermalNeutronModerator | true ⓘ |
| toxicityType |
berylliosis
ⓘ
chronic beryllium disease NERFINISHED ⓘ |
| transparentToXrays | true ⓘ |
| use |
X-ray equipment
ⓘ
X-ray tube windows ⓘ aerospace components ⓘ electrical contacts ⓘ gyroscopes ⓘ high-performance springs ⓘ missile components ⓘ neutron moderator ⓘ neutron reflector ⓘ non-sparking tools ⓘ nuclear reactors ⓘ precision instruments ⓘ satellite structures ⓘ |
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
beryllium is a chemical element