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Ununseptium (unknown chemical properties)
Ununoctium (unknown chemical properties)
red-orange metallic luster

Native copper (~4 cm in size)
Kinatibuk-ang mga kinaiya
Ngalan, simbolo, kaiphan copper, Cu, 29
Paglitok /ˈkɒpər/ [[Help:Pronunciation respelling key|Plantilya:Smallcaps all-ər]]
Kategoriyang elemento puthaw nga transisyon
Group, period, block 114, d
Gibug-aton sa atomo 63.546(3)
Kontorno sa elektron [Ar] 3d10 4s1
2, 8, 18, 1
Electron shells of copper (2, 8, 18, 1)
Pagkadiskobre Middle Easterns (9000 BC)
Physical properties
Phase magahi
Density (near r.t.) 8.96 g·cm−3
Liquid density at m.p. 8.02 g·cm−3
Melting point 1357.77 K, 1084.62 °C, 1984.32 °F
Boiling point 2835 K, 2562 °C, 4643 °F
Heat of fusion 13.26 kJ·mol−1
Heat of vaporization 300.4 kJ·mol−1
Molar heat capacity 24.440 J·mol−1·K−1
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 1509 1661 1850 2089 2404 2834
Atomic properties
Oxidation states +1, +2, +3, +4
(mildly basic oxide)
Electronegativity 1.90 (Pauling scale)
Ionization energies
1st: 745.5 kJ·mol−1
2nd: 1957.9 kJ·mol−1
3rd: 3555 kJ·mol−1
Atomic radius 128 pm
Covalent radius 132±4 pm
Van der Waals radius 140 pm
Crystal structure face-centered cubic
Copper has a face-centered cubic crystal structure
Magnetic ordering diamagnetic[1]
Electrical resistivity (20 °C) 16.78 nΩ·m
Thermal conductivity 401 W·m−1·K−1
Thermal expansion (25 °C) 16.5 µm·m−1·K−1
Speed of sound (thin rod) (r.t.) (annealed)
3810 m·s−1
Young's modulus 110–128 GPa
Shear modulus 48 GPa
Bulk modulus 140 GPa
Poisson ratio 0.34
Mohs hardness 3.0
Vickers hardness 369 MPa
Brinell hardness 874 MPa
CAS registry number 7440-50-8
Most stable isotopes
Main article: Isotopes of copper
iso NA half-life DM DE (MeV) DP
63Cu 69.15% 63Cu is stable with 34 neutrons
64Cu syn 12.700 h ε - 64Ni
β - 64Zn
65Cu 30.85% 65Cu is stable with 36 neutrons
67Cu syn 61.83 h β - 67Zn
· r

Ang tumbaga o kobre (Iningles copper) mao ang elementong kimiko sa talaang peryodiko nga may simbolo nga Cu ug kaiphan nga atomik 29. Ang tumbaga mao ang puthaw nga transisyon.

Ang mga gi basihan niini[usba | usba ang wikitext]

  1. Magnetic susceptibility of the elements and inorganic compounds in Lide, D. R., ed. (2005). CRC Handbook of Chemistry and Physics (86th ed.). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5. 

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