Element 29 of Periodic table is Copper with atomic number 29, atomic weight 63.546. Copper, symbol Cu, has a Face Centered Cubic structure and Copper color. Copper is a transition metal element. Trivial name of Copper is coinage metals. Know everything about Copper Facts, Physical Properties, Chemical Properties, Electronic configuration, Atomic and Crystal Structure.
Copper is a chemical element with 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 reddish-orange color.
Read key information and facts about element Copper
Name | Copper |
Atomic Number | 29 |
Atomic Symbol | Cu |
Atomic Weight | 63.546 |
Phase | Solid |
Color | Copper |
Classification | transition metal |
Group in Periodic Table | 11 |
Group Name | copper family |
Period in Periodic Table | 4 |
Block in Periodic Table | d-block |
Electronic Configuration | [Ar] 3d10 4s1 |
Melting Point | 1084.62 °C |
Boiling Point | 2927 °C |
Electronic Shell Structure | [2, 8, 18, 1] |
CAS Number | CAS7440-50-8 |
Periodic table is arranged by atomic number, number of protons in the nucleus which is same as number of electrons. The atomic number increases from left to right. Periodic table starts at top left ( Atomic number 1) and ends at bottom right (atomic number 118). Therefore you can directly look for atomic number 29 to find Copper on periodic table.
Another way to read periodic table and locate an element is by using group number (column) and period number (row). To locate Copper on periodic table look for cross section of group 11 and period 4 in the modern periodic table.
The element Copper was discovered by Middle East in year 8000 BC in unknown place . Copper derived its name from English word (Latin cuprum)
The table below shows the abundance of Copper in Universe, Sun, Meteorites, Earth's Crust, Oceans and Human Body.
Ppb by weight (1ppb =10^-7 %) | |
---|---|
Abundance in Universe | 6×10-6% |
Abundance in Sun | 7e-07 |
Abundance in Meteorites | 0.00011 |
Abundance in Earth's Crust | 6.8e-05 |
Abundance in Oceans | 3×10-7% |
Abundance in Humans | 1e-06 |
The solid state structure of Copper is Face Centered Cubic.
The Crystal structure can be described in terms of its unit Cell. The unit Cells repeats itself in three dimensional space to form the structure.
The unit cell is represented in terms of its lattice parameters, which are the lengths of the cell edges Lattice Constants (a, b and c)
a | b | c |
---|---|---|
361.49 | 361.49 | 361.49 pm |
and the angles between them Lattice Angles (alpha, beta and gamma).
alpha | beta | gamma |
---|---|---|
π/2 | π/2 | π/2 |
The positions of the atoms inside the unit cell are described by the set of atomic positions ( xi, yi, zi) measured from a reference lattice point.
The symmetry properties of the crystal are described by the concept of space groups. All possible symmetric arrangements of particles in three-dimensional space are described by the 230 space groups (219 distinct types, or 230 if chiral copies are considered distinct.
Space Group Name | Fm_ 3m |
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Space Group Number | 225 | |
Crystal Structure | Face Centered Cubic |
Copper atoms have 29 electrons and the electronic shell structure is [2, 8, 18, 1] with Atomic Term Symbol (Quantum Numbers) 2S1/2.
Atomic Number | 29 |
Number of Electrons (with no charge) | 29 |
Number of Protons | 29 |
Mass Number | 64 |
Number of Neutrons | 35 |
Shell structure (Electrons per energy level) | [2, 8, 18, 1] |
Electron Configuration | [Ar] 3d10 4s1 |
Valence Electrons | 3d10 4s1 |
Oxidation State |
-2
1;2;3;4 |
Atomic Term Symbol (Quantum Numbers) | 2S1/2 |
Shell Structure of Copper - Electrons per energy level
n | s | p | d | f | |
---|---|---|---|---|---|
1 | K | 2 | |||
2 | L | 2 | 6 | ||
3 | M | 2 | 6 | 10 | |
4 | N | 1 |
The ground state electronic configuration of Neutral Copper atom is [Ar] 3d10 4s1. The portion of Copper configuration that is equivalent to the noble gas of the preceding period, is abbreviated as [Ar]. For atoms with many electrons, this notation can become lengthy and so an abbreviated notation is used.This is important as it is the Valence electrons 3d10 4s1, electrons in the outermost shell that determine the chemical properties of the element.
Complete ground state electronic configuration for the Copper atom, Unabbreviated electronic configuration
1s2 2s2 2p6 3s2 3p6 3d10 4s1
Copper atomic radius is 145 pm, while it's covalent radius is 138 pm.
Atomic Radius |
145 pm (1.45 Å) |
Atomic Volume | 7.12399103139 cm3 |
Covalent Radius | 138 pm (1.38 Å) |
Van der Waals Radius | 140 pm |
Neutron Cross Section | 3.78 σa/barns |
The electron affinity of Copper is 118.4 kJ/mol
Valence | 2 |
Electronegativity | 1.9 |
ElectronAffinity | 118.4 kJ/mol |
Refer to table below for Ionization energies of Copper
Ionization energy number | Enthalpy - kJ/mol |
---|---|
1 | 745.5 |
2 | 1957.9 |
3 | 3555 |
4 | 5536 |
5 | 7.7×103 |
6 | 9.9×103 |
7 | 1.34×104 |
8 | 1.6×104 |
9 | 1.92×104 |
10 | 2.24×104 |
11 | 2.56×104 |
12 | 3.56×104 |
13 | 3.87×104 |
14 | 4.2×104 |
15 | 4.67×104 |
16 | 5.02×104 |
17 | 5.37×104 |
18 | 6.11×104 |
19 | 64702 |
20 | 1.637×105 |
21 | 1.741×105 |
Refer to below table for Copper Physical Properties
Density | 8.92 g/cm3 |
Molar Volume | 7.12399103139 cm3 |
Young Modulus | 130 GPa |
Shear Modulus | 48 GPa |
Bulk Modulus | 140 GPa |
Poisson Ratio | 0.34 |
Mohs Hardness | 3 MPa |
Vickers Hardness | 369 MPa |
Brinell Hardness | 874 MPa |
Copper is Conductor of electricity. Refer to table below for the Electrical properties of Copper
Electrical Conductivity | 5.9×107 S/m |
Resistivity | 1.7×10-8 m Ω |
Superconducting Point | N/A |
Thermal Conductivity | 400 W/(m K) |
Thermal Expansion | 0.0000165 K-1 |
Magnetic Type | Diamagnetic |
Curie Point | N/A |
Mass Magnetic Susceptibility | -1.08×10-9 |
Molar Magnetic Susceptibility | -6.86×10-11 |
Volume Magnetic Susceptibility | -9.63×10-6 |
Refractive Index | N/A |
Speed of Sound | 3570 m/s |
Refer to table below for Thermal properties of Copper
Melting Point | 1357.77 K (1084.62 °C) |
Boiling Point | 3.2×103 K (2927 °C) |
Critical Temperature | N/A |
Superconducting Point | N/A |
Heat of Fusion | 13.1 kJ/mol |
Heat of Vaporization | 300 kJ/mol |
Heat of Combustion | N/A |
Isotopes of rhodium. Naturally occurring Copper has 2 stable isotope - 63Cu, 65Cu.
Isotope | Isotope Mass | % Abundance | T half | Decay Mode |
---|---|---|---|---|
52Cu | ||||
53Cu | ||||
54Cu | ||||
55Cu | ||||
56Cu | ||||
57Cu | ||||
58Cu | ||||
59Cu | ||||
60Cu | ||||
61Cu | ||||
62Cu | ||||
63Cu | 69.17% | Stable | N/A | |
64Cu | ||||
65Cu | 30.83% | Stable | N/A | |
66Cu | ||||
67Cu | ||||
68Cu | ||||
69Cu | ||||
70Cu | ||||
71Cu | ||||
72Cu | ||||
73Cu | ||||
74Cu | ||||
75Cu | ||||
76Cu | ||||
77Cu | ||||
78Cu | ||||
79Cu | ||||
80Cu |
CAS Number | CAS7440-50-8 |
RTECS Number | RTECSGL5325000 |
DOT Hazard Class | 4.1 |
DOT Numbers | 3089 |
EU Number | N/A |
NFPA Fire Rating | 1 |
NFPA Hazards | N/A |
NFPA Health Rating | 1 |
NFPA Reactivity Rating | 0 |
Autoignition Point | N/A |
Flashpoint | N/A |
List of unique identifiers to search the element in various chemical registry databases
Database | Identifier number |
---|---|
CAS Number - Chemical Abstracts Service (CAS) | CAS7440-50-8 |
CID Number | CID23978 |
Gmelin Number | N/A |
NSC Number | N/A |
RTECS Number | RTECSGL5325000 |
Metalloid |
Nonmetals |
Other Nonmetals | |
Halogens | Noble Gas |
Metals |
|
Alkali Metals | Alkaline Earth Metals |
Transition Metals | Post-Transition Metals |
Lanthanide | Actinide |