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Copper vs Potassium

Copper
Potassium
Potassium vs Copper


Periodic Table
Symbol
Cu   
K   
Group Number
11   
7
1   
17
Period Number
4   
4   
Block
d block   
s block   
Element Family
Transition Metal   
Alkali   
CAS Number
7440508   
37
7440097   
99+
Space Group Name
Fm_ 3m   
Im_ 3m   
Space Group Number
225.00   
2
229.00   
1
Facts
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.
  
  • In the list of most abundant element Potassium is ranked 7th.
  • Potassium can easily be sliced (chopped) down using knife.
  
Sources
Found in Minerals   
Found in Minerals, Mining   
History
  
  
Who Discovered
Unknown   
Humphry Davy   
Discovery
In Middle East (9000 BCE)   
In 1807   
Abundance
  
  
Abundance In Universe
6 * 10-6 %   
12
3 * 10-4 %   
9
Abundance In Sun
~0.00007 %   
12
~0.0004 %   
9
Abundance In Meteorites
0.01 %   
13
0.07 %   
9
Abundance In Earth's Crust
0.01 %   
17
1.50 %   
6
Abundance In Oceans
0.00 %   
8
0.04 %   
3
Abundance In Humans
0.00 %   
9
0.20 %   
2
Uses
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.
  
  • Potassium’s compounds are in high demand for their application in Fertilizer manufacturing.
  • Potassium carbonate is used in glass manufacturing and Potassium carbonate in manufacturing detergent and body wash.
  
Industrial Uses
Chemical Industry, Electronic Industry   
Ammunition Industry, Chemical Industry   
Medical Uses
NA   
Pharmaceutical Industry   
Other Uses
Alloys, Coinage, Jewellery   
NA   
Biological Properties
  
  
Toxicity
Non Toxic   
Toxic   
Present in Human Body
Yes   
Yes   
In Blood
1.01 Blood/mg dm-3   
8
1,620.00 Blood/mg dm-3   
2
In Bone
26.00 p.p.m.   
12
2,100.00 p.p.m.   
3
Physical Properties
Melting Point
1,084.62 °C   
40
63.65 °C   
99+
Boiling Point
2,562.00 °C   
99+
774.00 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Copper   
Silvery Gray   
Luster
NA   
NA   
Hardness
  
  
Mohs Hardness
3.00   
12
0.40   
23
Brinell Hardness
235.00 MPa   
38
0.36 MPa   
99+
Vickers Hardness
343.00 MPa   
28
Not Available   
Speed of Sound
3,810.00 m/s   
19
2,000.00 m/s   
99+
Optical Properties
  
  
Reflectivity
90.00 %   
3
Not Available   
Allotropes
No   
No   
α Allotropes
Not Available   
Not Available   
β Allotropes
Not Available   
Not Available   
γ Allotropes
Not Available   
Not Available   
Chemical Properties
Chemical Formula
Cu   
K   
Isotopes
  
  
Known Isotopes
29   
10
20   
19
Electronegativity
  
  
Pauling Electronegativity
1.90   
11
0.82   
99+
Sanderson Electronegativity
1.98   
9
0.45   
31
Allred Rochow Electronegativity
1.75   
3
0.91   
39
Mulliken-Jaffe Electronegativity
1.49   
14
0.73   
23
Allen Electronegativity
1.85   
9
0.73   
99+
Electropositivity
  
  
Pauling Electropositivity
2.10   
99+
3.18   
3
Ionization Energies
  
  
1st Energy Level
745.50 kJ/mol   
22
418.80 kJ/mol   
99+
2nd Energy Level
1,957.90 kJ/mol   
15
3,052.00 kJ/mol   
5
3rd Energy Level
3,555.00 kJ/mol   
15
4,420.00 kJ/mol   
8
4th Energy Level
5,536.00 kJ/mol   
12
5,877.00 kJ/mol   
9
5th Energy Level
7,700.00 kJ/mol   
11
7,975.00 kJ/mol   
8
6th Energy Level
9,900.00 kJ/mol   
10
9,590.00 kJ/mol   
13
7th Energy level
13,400.00 kJ/mol   
7
11,343.00 kJ/mol   
17
8th Energy Level
16,000.00 kJ/mol   
9
14,944.00 kJ/mol   
13
9th Energy Level
19,200.00 kJ/mol   
9
16,963.70 kJ/mol   
15
10th Energy Level
22,400.00 kJ/mol   
11
48,610.00 kJ/mol   
3
11th Energy Level
25,600.00 kJ/mol   
13
54,490.00 kJ/mol   
4
12th Energy Level
35,600.00 kJ/mol   
6
60,730.00 kJ/mol   
4
13th Energy Level
38,700.00 kJ/mol   
6
68,950.00 kJ/mol   
4
14th Energy Level
42,000.00 kJ/mol   
7
75,900.00 kJ/mol   
5
15th Energy Level
46,700.00 kJ/mol   
9
83,080.00 kJ/mol   
6
16th Energy Level
50,200.00 kJ/mol   
10
93,400.00 kJ/mol   
7
17th Energy Level
53,700.00 kJ/mol   
12
99,710.00 kJ/mol   
8
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+
1.46 g/amp-hr   
99+
Electron Work Function
4.65 eV   
11
2.30 eV   
99+
Other Chemical Properties
Chemical Stability, Corrosion, Ionization, Solubility   
Chemical Stability, Flammability, Ionization, Solubility   
Atomic Properties
Atomic Number
29   
99+
19   
99+
Electron Configuration
[Ar] 3d10 4s1   
[Ar] 4s1   
Crystal Structure
Face Centered Cubic (FCC)   
Body Centered Cubic (BCC)   
Crystal Lattice
FCC-Crystal-Structure-of-Copper.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
29   
99+
19   
99+
Number of Neutrons
35   
99+
20   
99+
Number of Electrons
29   
99+
19   
99+
Radius of an Atom
  
  
Atomic Radius
128.00 pm   
99+
227.00 pm   
3
Covalent Radius
132.00 pm   
99+
203.00 pm   
9
Van der Waals Radius
140.00 pm   
99+
275.00 pm   
5
Atomic Weight
63.55 amu   
99+
39.10 amu   
99+
Atomic Volume
7.10 cm3/mol   
99+
45.46 cm3/mol   
3
Adjacent Atomic Numbers
  
  
Previous Element
Nickel
  
Aluminium
  
Next Element
Zinc
  
Calcium
  
Valence Electron Potential
34.00 (-eV)   
99+
10.40 (-eV)   
99+
Lattice Constant
361.49 pm   
35
532.80 pm   
12
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
8.96 g/cm3   
99+
0.86 g/cm3   
99+
Density When Liquid (at m.p.)
8.02 g/cm3   
27
0.83 g/cm3   
99+
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
1.53 (Pa)   
8
Not Available   
Elasticity properties
  
  
Shear Modulus
48.00 GPa   
15
1.30 GPa   
99+
Bulk Modulus
140.00 GPa   
12
3.10 GPa   
99+
Young's Modulus
120.00 GPa   
17
3.53 GPa   
99+
Poisson Ratio
0.34   
10
Not Available   
Other Mechanical Properties
Ductile, Malleable   
NA   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
8.89   
34
0.86   
99+
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+
72.00 nΩ·m   
37
Electrical Conductivity
0.60 106/cm Ω   
2
0.14 106/cm Ω   
14
Electron Affinity
222.80 kJ/mol   
1
48.40 kJ/mol   
22
Thermal Properties
Specific Heat
0.38 J/(kg K)   
15
0.75 J/(kg K)   
6
Molar Heat Capacity
24.44 J/mol·K   
99+
29.60 J/mol·K   
6
Thermal Conductivity
401.00 W/m·K   
2
102.50 W/m·K   
15
Critical Temperature
Not Available   
2,223.00 K   
3
Thermal Expansion
16.50 µm/(m·K)   
25
83.30 µm/(m·K)   
3
Enthalpy
  
  
Enthalpy of Vaporization
283.70 kJ/mol   
33
77.50 kJ/mol   
99+
Enthalpy of Fusion
7.11 kJ/mol   
99+
2.32 kJ/mol   
99+
Enthalpy of Atomization
338.90 kJ/mol   
29
89.50 kJ/mol   
99+
Standard Molar Entropy
33.20 J/mol.K   
99+
64.70 J/mol.K   
18
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