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Copper Potassium Comparison

Copper
Potassium
Potassium Copper comparison


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  
3
229.00  
2
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
-  
Humphry Davy  
Discovery
In Middle East (9000 BCE)  
In 1807  
Abundance
  
  
Abundance In Universe
0.00 %  
13
0.00 %  
10
Abundance In Sun
0.00 %  
12
0.00 %  
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 %  
10
0.20 %  
3
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
-  
Pharmaceutical Industry  
Other Uses
Alloys, Coinage, Jewellery  
-  
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
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
-  
-  
Hardness
  
  
Mohs Hardness
3.00  
13
0.40  
25
Brinell Hardness
235.00 MPa  
99+
0.36 MPa  
99+
Vickers Hardness
343.00 MPa  
99+
100.00 MPa  
99+
Speed of Sound
3,810.00 m/s  
26
2,000.00 m/s  
99+
Optical Properties
  
  
Refractive Index
1.10  
99+
1.33  
99+
Reflectivity
90.00 %  
4
72.00 %  
11
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Cu  
K  
Isotopes
  
  
Known Isotopes
29  
10
20  
19
Electronegativity
  
  
Pauling Electronegativity
1.90  
12
0.82  
99+
Sanderson Electronegativity
1.98  
11
0.45  
99+
Allred Rochow Electronegativity
1.75  
4
0.91  
40
Mulliken-Jaffe Electronegativity
1.49  
27
0.73  
99+
Allen Electronegativity
1.85  
12
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  
21
5,877.00 kJ/mol  
18
5th Energy Level
7,700.00 kJ/mol  
17
7,975.00 kJ/mol  
14
6th Energy Level
9,900.00 kJ/mol  
16
9,590.00 kJ/mol  
19
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  
27
60,730.00 kJ/mol  
15
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  
99+
83,080.00 kJ/mol  
13
16th Energy Level
50,200.00 kJ/mol  
99+
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
4,196.00 kJ/mol  
99+
19th Energy Level
64,702.00 kJ/mol  
11
419.20 kJ/mol  
99+
20th Energy Level
163,700.00 kJ/mol  
2
419.00 kJ/mol  
99+
21st Energy Level
174,100.00 kJ/mol  
2
419.20 kJ/mol  
99+
22nd Energy Level
184,900.00 kJ/mol  
1
419.00 kJ/mol  
99+
23rd Energy Level
198,800.00 kJ/mol  
1
419.20 kJ/mol  
99+
24th Energy Level
745.50 kJ/mol  
19
419.20 kJ/mol  
99+
25th Energy Level
745.50 kJ/mol  
19
419.20 kJ/mol  
99+
26th Energy Level
745.50 kJ/mol  
19
419.20 kJ/mol  
99+
27th Energy Level
745.50 kJ/mol  
18
419.20 kJ/mol  
99+
28th Energy Level
745.50 kJ/mol  
24
419.20 kJ/mol  
99+
29th Energy Level
745.50 kJ/mol  
25
419.20 kJ/mol  
99+
30th Energy Level
745.50 kJ/mol  
19
419.00 kJ/mol  
99+
Electrochemical Equivalent
1.19 g/amp-hr  
99+
1.46 g/amp-hr  
99+
Electron Work Function
4.65 eV  
16
2.30 eV  
99+
Other Chemical Properties
Chemical Stability, Corrosion, Ionization, Solubility  
Chemical Stability, Flammability, Ionization, Solubility  
Atomic
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  
4
Covalent Radius
132.00 pm  
99+
203.00 pm  
9
Van der Waals Radius
140.00 pm  
99+
275.00 pm  
7
Atomic Weight
63.55 amu  
99+
39.10 amu  
99+
Atomic Volume
7.10 cm3/mol  
99+
45.46 cm3/mol  
4
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  
39
532.80 pm  
13
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  
Lattice C/A Ratio
1.28  
99+
1.69  
10
Mechanical
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  
99+
0.83 g/cm3  
99+
Tensile Strength
210.00 MPa  
19
16.00 MPa  
99+
Viscosity
0.00  
25
0.00  
9
Vapor Pressure
  
  
Vapor Pressure at 1000 K
1.53 (Pa)  
8
0.00 (Pa)  
16
Vapor Pressure at 2000 K
0.00 (Pa)  
30
0.00 (Pa)  
34
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  
19
3.53 GPa  
99+
Poisson Ratio
0.34  
10
0.35  
9
Other Mechanical Properties
Ductile, Malleable  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
8.89  
99+
0.86  
99+
Magnetic Ordering
Diamagnetic  
Paramagnetic  
Permeability
0.00 H/m  
19
0.00 H/m  
13
Susceptibility
0.00  
31
0.00  
23
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  
16
Electron Affinity
222.80 kJ/mol  
1
48.40 kJ/mol  
27
Thermal
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  
8
Thermal Conductivity
401.00 W/m·K  
2
102.50 W/m·K  
15
Critical Temperature
1,358.00 K  
99+
2,223.00 K  
14
Thermal Expansion
16.50 µm/(m·K)  
27
83.30 µm/(m·K)  
3
Enthalpy
  
  
Enthalpy of Vaporization
283.70 kJ/mol  
99+
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  
39
89.50 kJ/mol  
99+
Standard Molar Entropy
33.20 J/mol.K  
99+
64.70 J/mol.K  
19
Summary >>
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