copper (chemical element)

E225137

Copper is a reddish-brown, highly conductive metallic element widely used in electrical wiring, electronics, and alloys such as bronze and brass.

All labels observed (2)

Label Occurrences
Copper 1
copper (chemical element) canonical 1

How this entity was disambiguated

Statements (54)

Predicate Object
instanceOf chemical element
metal
transition metal
appearance reddish-brown metal
atomicNumber 29
belongsToSeries coinage metals
transition metals
block d-block
boilingPoint 2562 °C
BrinellHardness 35 HB
CASNumber 7440-50-8
chemicalSymbol Cu
commonIon Cu²⁺
Cu⁺
crystalStructure face-centered cubic
densityAtRoomTemperature 8.96 g/cm³
discoveredInAntiquity true
electricalConductivity very high
electronConfiguration [Ar] 3d¹⁰ 4s¹
electronegativityPauling 1.90
formsPatina true
group 11
isCorrosionResistant true
isDuctile true
isEssentialTraceElementForHumans true
isMalleable true
isParamagnetic true
isUsedForArtAndArchitecture true
isUsedForCoins true
majorUse electrical wiring
electronics
heat exchangers
plumbing
roofing
meltingPoint 1084.62 °C
MohsHardness 3.0
nameOrigin from Latin cuprum
occursInMineral azurite
bornite
chalcopyrite
malachite
native copper
oxidationStates +1
+2
patinaColor green
period 4
standardAtomicWeight 63.546
standardReductionPotentialCu2plusToCu +0.34 V
thermalConductivity very high
thermalExpansionCoefficient 16.5 µm/(m·K) at 20 °C
usedInAlloy brass
bronze
constantan
cupronickel

How these facts were elicited

Referenced by (2)

Full triples — surface form annotated when it differs from this entity's canonical label.

Copper namedAfter copper (chemical element)
Terraform hasTrack copper (chemical element)
this entity surface form: Copper