Copper Company Profile

Aggregated data from the web about Copper

Company Name	Copper
Website	https://en.wikipedia.org
Snippet	Copper is a chemical element with the symbol Cu (from Latin: cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity.A freshly exposed surface of pure copper has a pinkish-orange color.Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling ...
63Cu	69.15%
64Cu	syn
65Cu	30.85%
67Cu	syn
Block	d-block
Group	group 11
Naming	after Cyprus, principal mining place in Roman era (Cyprium)
P (Pa)	Vapor pressureP (Pa)1101001 k10 k100 kat T (K)150916611850208924042834
Period	period 4
Symbol	"Cu": from Latin cuprum
at T (K)	1509
Discovery	Middle East (9000 BC)
Isotope	IsotopeAbundanceHalf-life (t1/2)Decay modeProduct63Cu69.15%stable64Cusyn12.70 hε64Niβ−64Zn65Cu30.85%stable67Cusyn61.83 hβ−67Zn
Appearance	red-orange metallic luster
CAS Number	7440-50-8
Bulk modulus	140 GPa
Phase at STP	solid
Atomic radius	empirical: 128 pm
Boiling point	2835 K (2562 °C, 4643 °F)
Melting point	1357.77 K (1084.62 °C, 1984.32 °F)
Mohs hardness	3.0
Poisson ratio	0.34
Shear modulus	48 GPa
Heat of fusion	13.26 kJ/mol
Covalent radius	132±4 pm
Young's modulus	110–128 GPa
Brinell hardness	235–878 MPa
Oxidation states	−2, 0,[2] +1, +2, +3, +4 (a mildly basic oxide)
Vickers hardness	343–369 MPa
Atomic number (Z)	29
Crystal structure	face-centered cubic (fcc)
Electronegativity	Pauling scale: 1.90
Magnetic ordering	diamagnetic[3]
Thermal expansion	16.5 µm/(m⋅K) (at 25 °C)
Natural occurrence	primordial
Density (near r.t.)	8.96 g/cm3
Electrons per shell	2, 8, 18, 1
Ionization energies	1st: 745.5 kJ/mol, 2nd: 1957.9 kJ/mol, 3rd: 3555 kJ/mol, (more)
Molar heat capacity	24.440 J/(mol·K)
Heat of vaporization	300.4 kJ/mol
Thermal conductivity	401 W/(m⋅K)
Van der Waals radius	140 pm
when liquid (at m.p.)	8.02 g/cm3
Electrical resistivity	16.78 nΩ⋅m (at 20 °C)
Electron configuration	[Ar] 3d10 4s1
Speed of sound thin rod	(annealed)3810 m/s (at r.t.)
Molar magnetic susceptibility	−5.46×10−6 cm3/mol[4]
Standard atomic weight.mw-parser-output .nobold{font-weight:normal} Ar, std(Cu)	63.546(3)[1]

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