Symbol
Cu
  
Ru
  
Period Number
4
  
5
  
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.
  
- Ruthenium element has been extracted from used nuclear fuel.
- Ruthenium metal also produces as a by-product of the Nickel mining.
  
Sources
Found in Minerals
  
By-product of Nickel Refining, Found in Minerals, Mining
  
History
  
  
Who Discovered
Unknown
  
Karl Ernst Claus
  
Discovery
In Middle East (9000 BCE)
  
In 1844
  
Abundance
  
  
Abundance In Sun
~0.0000005 %
  
22
Abundance In Earth's Crust
Abundance In Humans
Not Available
  
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.
  
- It is used for producing chip resistors and contact.
- Ruthenium oxide is used to coat the anodes cells for chlorine production in chemical industry. It also works as catalysts for ammonia and acetic acid reaction.
  
Industrial Uses
Chemical Industry, Electronic Industry
  
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
  
Medical Uses
NA
  
Medical Research
  
Other Uses
Alloys, Coinage, Jewellery
  
Alloys
  
Biological Properties
  
  
Toxicity
Non Toxic
  
Low Toxic
  
Present in Human Body
Yes
  
No
  
In Blood
1.01 Blood/mg dm-3
  
8
Not Available
  
In Bone
26.00 p.p.m.
  
12
Not Available
  
Melting Point
1,084.62 °C
  
40
Boiling Point
2,562.00 °C
  
99+
3,900.00 °C
  
14
Appearance
  
  
Physical State
Solid
  
Solid
  
Color
Copper
  
Silvery White
  
Luster
NA
  
Metallic
  
Hardness
  
  
Brinell Hardness
2,160.00 MPa
  
3
Vickers Hardness
Not Available
  
Speed of Sound
3,810.00 m/s
  
19
5,970.00 m/s
  
4
Optical Properties
  
  
Reflectivity
Not Available
  
Allotropes
No
  
No
  
α Allotropes
Not Available
  
Not Available
  
β Allotropes
Not Available
  
Not Available
  
γ Allotropes
Not Available
  
Not Available
  
Chemical Formula
Cu
  
Ru
  
Isotopes
  
  
Electronegativity
  
  
Pauling Electronegativity
Sanderson Electronegativity
Not Available
  
Allred Rochow Electronegativity
Mulliken-Jaffe Electronegativity
Not Available
  
Electropositivity
  
  
Pauling Electropositivity
Ionization Energies
  
  
1st Energy Level
745.50 kJ/mol
  
22
710.20 kJ/mol
  
32
2nd Energy Level
1,957.90 kJ/mol
  
15
710.22 kJ/mol
  
99+
3rd Energy Level
3,555.00 kJ/mol
  
15
2,747.00 kJ/mol
  
37
4th Energy Level
5,536.00 kJ/mol
  
12
Not Available
  
5th Energy Level
7,700.00 kJ/mol
  
11
Not Available
  
6th Energy Level
9,900.00 kJ/mol
  
10
Not Available
  
7th Energy level
13,400.00 kJ/mol
  
7
Not Available
  
8th Energy Level
16,000.00 kJ/mol
  
9
Not Available
  
9th Energy Level
19,200.00 kJ/mol
  
9
Not Available
  
10th Energy Level
22,400.00 kJ/mol
  
11
Not Available
  
11th Energy Level
25,600.00 kJ/mol
  
13
Not Available
  
12th Energy Level
35,600.00 kJ/mol
  
6
Not Available
  
13th Energy Level
38,700.00 kJ/mol
  
6
Not Available
  
14th Energy Level
42,000.00 kJ/mol
  
7
Not Available
  
15th Energy Level
46,700.00 kJ/mol
  
9
Not Available
  
16th Energy Level
50,200.00 kJ/mol
  
10
Not Available
  
17th Energy Level
53,700.00 kJ/mol
  
12
Not Available
  
18th Energy Level
61,100.00 kJ/mol
  
10
Not Available
  
19th Energy Level
64,702.00 kJ/mol
  
11
Not Available
  
20th Energy Level
163,700.00 kJ/mol
  
2
Not Available
  
21st Energy Level
174,100.00 kJ/mol
  
2
Not Available
  
22nd Energy Level
184,900.00 kJ/mol
  
1
Not Available
  
23rd Energy Level
198,800.00 kJ/mol
  
1
Not Available
  
Electrochemical Equivalent
1.19 g/amp-hr
  
99+
1.26 g/amp-hr
  
99+
Other Chemical Properties
Chemical Stability, Corrosion, Ionization, Solubility
  
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
  
Electron Configuration
[Ar] 3d10 4s1
  
[Kr] 4d7 5s1
  
Crystal Structure
Face Centered Cubic (FCC)
  
Hexagonal Close Packed (HCP)
  
Crystal Lattice
FCC-Crystal-Structure-of-Copper.jpg#100
  
rystal-Structure-of-Ruthenium.jpg#100
  
Atom
  
  
Radius of an Atom
  
  
Atomic Weight
101.07 amu
  
99+
Atomic Volume
7.10 cm3/mol
  
99+
8.30 cm3/mol
  
99+
Adjacent Atomic Numbers
  
  
Valence Electron Potential
34.00 (-eV)
  
99+
64.00 (-eV)
  
22
Lattice Angles
π/2, π/2, π/2
  
π/2, π/2, 2 π/3
  
Lattice C/A Ratio
Not Available
  
Density
  
  
Density At Room Temperature
8.96 g/cm3
  
99+
12.45 g/cm3
  
27
Density When Liquid (at m.p.)
10.65 g/cm3
  
16
Tensile Strength
Not Available
  
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, Malleable
  
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
  
Conductor
  
Resistivity
16.78 nΩ·m
  
99+
Electrical Conductivity
0.60 106/cm Ω
  
2
0.14 106/cm Ω
  
16
Electron Affinity
222.80 kJ/mol
  
1
101.30 kJ/mol
  
10
Specific Heat
0.38 J/(kg K)
  
15
0.24 J/(kg K)
  
24
Molar Heat Capacity
24.44 J/mol·K
  
99+
24.06 J/mol·K
  
99+
Thermal Conductivity
401.00 W/m·K
  
2
117.00 W/m·K
  
13
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
16.50 µm/(m·K)
  
25
6.40 µm/(m·K)
  
99+
Enthalpy
  
  
Enthalpy of Vaporization
283.70 kJ/mol
  
33
567.80 kJ/mol
  
10
Enthalpy of Fusion
7.11 kJ/mol
  
99+
25.50 kJ/mol
  
7
Enthalpy of Atomization
338.90 kJ/mol
  
29
603.00 kJ/mol
  
9
Standard Molar Entropy
33.20 J/mol.K
  
99+
28.50 J/mol.K
  
99+