Symbol
Cu
  
Co
  
Period Number
4
  
4
  
Block
d block
  
d block
  
Element Family
Transition Metal
  
Transition Metal
  
Space Group Name
Fm_ 3m
  
P63/mmc
  
Interesting Facts
- Copper rarely found in its pure form in nature.
- Copper Sulfate is mostly used in agricultural poison and as an algicide in water purification system.
  
- The main source of Cobalt is as a by-product of copper and nickel metal mining.
- Cobalt metal can be obtained from other elements like Oxygen, Sulfur and Arsenic.
- It s also used in electroplating process as it exhibits anti cession properties.
  
Sources
Found in Minerals
  
Found in Compounds, Mining, Ores of Minerals
  
History
  
  
Who Discovered
Unknown
  
Georg Brandt
  
Discovery
In Middle East (9000 BCE)
  
In 1732
  
Abundance
  
  
Abundance In Earth's Crust
Uses & Benefits
- It is use for coinage and bullion.
- Most of copper element is used in manufacturing electrical and electronic equipments such as wirings and components. It is also used in construction and industrial machine.
  
- Its alloys with aluminum and nickel are used to make powerful magnets.
-
Few other alloys exhibit high-temperature strength and hence they are used in Turbines of Jet and Gas engine.
  
Industrial Uses
Chemical Industry, Electronic Industry
  
Chemical Industry, Electrical Industry, Electronic Industry
  
Medical Uses
NA
  
Pharmaceutical Industry
  
Other Uses
Alloys, Coinage, Jewellery
  
Alloys
  
Biological Properties
  
  
Toxicity
Non Toxic
  
Toxic
  
Present in Human Body
Yes
  
Yes
  
In Blood
1.01 Blood/mg dm-3
  
8
0.04 Blood/mg dm-3
  
18
In Bone
26.00 p.p.m.
  
12
0.04 p.p.m.
  
27
Melting Point
1,084.62 °C
  
40
1,495.00 °C
  
29
Boiling Point
2,562.00 °C
  
99+
2,870.00 °C
  
34
Appearance
  
  
Physical State
Solid
  
Solid
  
Color
Copper
  
Gray
  
Luster
NA
  
Metallic
  
Hardness
  
  
Vickers Hardness
1,043.00 MPa
  
11
Speed of Sound
3,810.00 m/s
  
19
4,720.00 m/s
  
14
Optical Properties
  
  
Allotropes
No
  
Yes
  
α Allotropes
Not Available
  
α-Cobalt
  
β Allotropes
Not Available
  
β-Cobalt
  
γ Allotropes
Not Available
  
Not Available
  
Chemical Formula
Cu
  
Co
  
Isotopes
  
  
Electronegativity
  
  
Pauling Electronegativity
Sanderson Electronegativity
Allred Rochow Electronegativity
Mulliken-Jaffe Electronegativity
Not Available
  
Electropositivity
  
  
Pauling Electropositivity
Ionization Energies
  
  
1st Energy Level
745.50 kJ/mol
  
22
760.40 kJ/mol
  
19
2nd Energy Level
1,957.90 kJ/mol
  
15
1,648.00 kJ/mol
  
31
3rd Energy Level
3,555.00 kJ/mol
  
15
3,232.00 kJ/mol
  
22
4th Energy Level
5,536.00 kJ/mol
  
12
4,950.00 kJ/mol
  
19
5th Energy Level
7,700.00 kJ/mol
  
11
7,670.00 kJ/mol
  
12
6th Energy Level
9,900.00 kJ/mol
  
10
9,840.00 kJ/mol
  
12
7th Energy level
13,400.00 kJ/mol
  
7
12,440.00 kJ/mol
  
11
8th Energy Level
16,000.00 kJ/mol
  
9
15,230.00 kJ/mol
  
12
9th Energy Level
19,200.00 kJ/mol
  
9
17,959.00 kJ/mol
  
13
10th Energy Level
22,400.00 kJ/mol
  
11
26,570.00 kJ/mol
  
7
11th Energy Level
25,600.00 kJ/mol
  
13
29,400.00 kJ/mol
  
8
12th Energy Level
35,600.00 kJ/mol
  
6
32,400.00 kJ/mol
  
8
13th Energy Level
38,700.00 kJ/mol
  
6
36,600.00 kJ/mol
  
8
14th Energy Level
42,000.00 kJ/mol
  
7
39,700.00 kJ/mol
  
9
15th Energy Level
46,700.00 kJ/mol
  
9
42,800.00 kJ/mol
  
12
16th Energy Level
50,200.00 kJ/mol
  
10
49,396.00 kJ/mol
  
11
17th Energy Level
53,700.00 kJ/mol
  
12
52,737.00 kJ/mol
  
13
18th Energy Level
61,100.00 kJ/mol
  
10
134,810.00 kJ/mol
  
1
19th Energy Level
64,702.00 kJ/mol
  
11
145,170.00 kJ/mol
  
2
20th Energy Level
163,700.00 kJ/mol
  
2
154,700.00 kJ/mol
  
4
21st Energy Level
174,100.00 kJ/mol
  
2
167,400.00 kJ/mol
  
4
22nd Energy Level
184,900.00 kJ/mol
  
1
178,100.00 kJ/mol
  
3
23rd Energy Level
198,800.00 kJ/mol
  
1
189,300.00 kJ/mol
  
3
Electrochemical Equivalent
1.19 g/amp-hr
  
99+
1.10 g/amp-hr
  
99+
Other Chemical Properties
Chemical Stability, Corrosion, Ionization, Solubility
  
Chemical Stability, Ionization
  
Electron Configuration
[Ar] 3d10 4s1
  
[Ar] 3d2 4s2
  
Crystal Structure
Face Centered Cubic (FCC)
  
Hexagonal Close Packed (HCP)
  
Crystal Lattice
FCC-Crystal-Structure-of-Copper.jpg#100
  
HCP-Crystal-Structure-of-Cobalt.jpg#100
  
Atom
  
  
Radius of an Atom
  
  
Atomic Volume
7.10 cm3/mol
  
99+
10.64 cm3/mol
  
99+
Adjacent Atomic Numbers
  
  
Valence Electron Potential
34.00 (-eV)
  
99+
95.20 (-eV)
  
10
Lattice Angles
π/2, π/2, π/2
  
π/2, π/2, 2 π/3
  
Lattice C/A Ratio
Not Available
  
Not Available
  
Density
  
  
Density At Room Temperature
8.96 g/cm3
  
99+
4.51 g/cm3
  
99+
Density When Liquid (at m.p.)
4.11 g/cm3
  
99+
Tensile Strength
Not Available
  
Viscosity
Not Available
  
Not Available
  
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available
  
Vapor Pressure at 2000 K
Not Available
  
Elasticity properties
  
  
Other Mechanical Properties
Ductile, Malleable
  
Ductile
  
Magnetic Characteristics
  
  
Magnetic Ordering
Diamagnetic
  
Paramagnetic
  
Permeability
1.256629 * 10
-6 H/m
  
5
Not Available
  
Susceptibility
-9.63 * 10
-6
  
4
Not Available
  
Electrical Properties
  
  
Electrical Property
Conductor
  
Poor Conductor
  
Resistivity
16.78 nΩ·m
  
99+
420.00 nΩ·m
  
12
Electrical Conductivity
0.60 106/cm Ω
  
2
0.02 106/cm Ω
  
99+
Electron Affinity
222.80 kJ/mol
  
1
7.60 kJ/mol
  
37
Specific Heat
0.38 J/(kg K)
  
15
0.52 J/(kg K)
  
9
Molar Heat Capacity
24.44 J/mol·K
  
99+
25.06 J/mol·K
  
99+
Thermal Conductivity
401.00 W/m·K
  
2
21.90 W/m·K
  
99+
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
16.50 µm/(m·K)
  
25
8.60 µm/(m·K)
  
99+
Enthalpy
  
  
Enthalpy of Vaporization
283.70 kJ/mol
  
33
429.00 kJ/mol
  
15
Enthalpy of Fusion
7.11 kJ/mol
  
99+
15.48 kJ/mol
  
19
Enthalpy of Atomization
338.90 kJ/mol
  
29
468.60 kJ/mol
  
15
Standard Molar Entropy
33.20 J/mol.K
  
99+
27.30 J/mol.K
  
99+