सीजः

| colspan=2 style="text-align: center" | Main article: Isotopes of copper
Copper
29Cu
-
↑
Cu
↓
Ag
nickel ← copper → zinc
रुप
red-orange metallic luster

Native copper (~4 cm in size)
साधारण गुण
नां, चिं, ल्या copper, Cu, 29
उच्चारण /ˈkɒpər/ KOP-ər
धातुया वर्ग transition metal
ग्रुप, पिरियद, ब्लक 11, 4, d
Standard atomic weight 63.546(3)
Electron configuration [Ar] 3d10 4s1
2, 8, 18, 1
Electron shells of copper (2, 8, 18, 1)
Electron shells of copper (2, 8, 18, 1)
History
Discovery Middle East (9000 BC)
Physical properties
Phase solid
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
(more) 		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
Miscellanea
Crystal structure face-centered cubic
Copper has a face-centered cubic crystal structure
Magnetic ordering diamagnetic[१]
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 35 HB = 874 MPa
CAS registry number 7440-50-8
Most stable isotopes
iso NA half-life DM DE (MeV) DP
63Cu 69.15% Cu एलेमेन्ट 34 न्युट्रोन नाप स्टेबल जु
64Cu syn 12.700 h ε - 64Ni
β− - 64Zn
65Cu 30.85% Cu एलेमेन्ट 36 न्युट्रोन नाप स्टेबल जु
67Cu syn 61.83 h β− - 67Zn
· r

थ्व छगु तत्त्व (एलेमेन्ट) ख:|

लिधंसा

  1. ↑ Magnetic susceptibility of the elements and inorganic compounds in Template:RubberBible86th
पिरियोडिक टेबल
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
1 H He
2 Li Be B C N O F Ne
3 Na Mg Al Si P S Cl Ar
4 K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
5 Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
6 Cs Ba La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
7 Fr Ra Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr Rf Db Sg Bh Hs Mt Ds Rg Cn Uut Fl Uup Lv Uus Uuo
परिमार्जित