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Tungsten vs Potassium

Tungsten
Potassium
Potassium vs Tungsten


Periodic Table
Symbol
W  
K  
Group Number
6  
12
1  
17
Period Number
6  
4  
Block
d block  
s block  
Element Family
Transition Metal  
Alkali  
CAS Number
7440337  
99+
7440097  
99+
Space Group Name
Im_ 3m  
Im_ 3m  
Space Group Number
229.00  
1
229.00  
1
Facts
Interesting Facts
  • Tungsten element has the second highest melting point.
  • Pure tungsten can easily cut down with the help of hacksaw.
  
  • In the list of most abundant element Potassium is ranked 7th.
  • Potassium can easily be sliced (chopped) down using knife.
  
Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals  
Found in Minerals, Mining  
History
  
  
Who Discovered
Not Available  
Humphry Davy  
Discovery
In 1781  
In 1807  
Abundance
  
  
Abundance In Universe
5 * 10-8 %  
27
3 * 10-4 %  
9
Abundance In Sun
~0.0000004 %  
23
~0.0004 %  
9
Abundance In Meteorites
0.00 %  
39
0.07 %  
9
Abundance In Earth's Crust
0.00 %  
39
1.50 %  
6
Abundance In Oceans
0.00 %  
18
0.04 %  
3
Abundance In Humans
Not Available  
0.20 %  
2
Uses
Uses & Benefits
  • Tungsten and its alloys are used in high-temperature applications like welding electrodes, high-temperature furnace, etc.
  • Tungsten carbide is very hard and used in metal working, mining and petroleum industry.
  
  • 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
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry  
Ammunition Industry, Chemical Industry  
Medical Uses
NA  
Pharmaceutical Industry  
Other Uses
Alloys  
NA  
Biological Properties
  
  
Toxicity
Non Toxic  
Toxic  
Present in Human Body
Yes  
Yes  
In Blood
0.00 Blood/mg dm-3  
31
1,620.00 Blood/mg dm-3  
2
In Bone
0.00 p.p.m.  
35
2,100.00 p.p.m.  
3
Physical Properties
Melting Point
3,410.00 °C  
1
63.65 °C  
99+
Boiling Point
5,660.00 °C  
1
774.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
Grayish White  
Silvery Gray  
Luster
Lustrous  
NA  
Hardness
  
  
Mohs Hardness
7.50  
2
0.40  
23
Brinell Hardness
2,000.00 MPa  
4
0.36 MPa  
99+
Vickers Hardness
3,430.00 MPa  
1
Not Available  
Speed of Sound
4,620.00 m/s  
16
2,000.00 m/s  
99+
Optical Properties
  
  
Reflectivity
62.00 %  
13
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
W  
K  
Isotopes
  
  
Known Isotopes
33  
6
20  
19
Electronegativity
  
  
Pauling Electronegativity
2.36  
2
0.82  
99+
Sanderson Electronegativity
0.98  
23
0.45  
31
Allred Rochow Electronegativity
1.40  
19
0.91  
39
Mulliken-Jaffe Electronegativity
Not Available  
0.73  
23
Allen Electronegativity
1.47  
29
0.73  
99+
Electropositivity
  
  
Pauling Electropositivity
1.64  
99+
3.18  
3
Ionization Energies
  
  
1st Energy Level
770.00 kJ/mol  
16
418.80 kJ/mol  
99+
2nd Energy Level
1,700.00 kJ/mol  
29
3,052.00 kJ/mol  
5
3rd Energy Level
Not Available  
4,420.00 kJ/mol  
8
4th Energy Level
Not Available  
5,877.00 kJ/mol  
9
5th Energy Level
Not Available  
7,975.00 kJ/mol  
8
6th Energy Level
Not Available  
9,590.00 kJ/mol  
13
7th Energy level
Not Available  
11,343.00 kJ/mol  
17
8th Energy Level
Not Available  
14,944.00 kJ/mol  
13
9th Energy Level
Not Available  
16,963.70 kJ/mol  
15
10th Energy Level
Not Available  
48,610.00 kJ/mol  
3
11th Energy Level
Not Available  
54,490.00 kJ/mol  
4
12th Energy Level
Not Available  
60,730.00 kJ/mol  
4
13th Energy Level
Not Available  
68,950.00 kJ/mol  
4
14th Energy Level
Not Available  
75,900.00 kJ/mol  
5
15th Energy Level
Not Available  
83,080.00 kJ/mol  
6
16th Energy Level
Not Available  
93,400.00 kJ/mol  
7
17th Energy Level
Not Available  
99,710.00 kJ/mol  
8
Electrochemical Equivalent
1.14 g/amp-hr  
99+
1.46 g/amp-hr  
99+
Electron Work Function
4.55 eV  
13
2.30 eV  
99+
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility  
Chemical Stability, Flammability, Ionization, Solubility  
Atomic Properties
Atomic Number
74  
99+
19  
99+
Electron Configuration
[Xe] 4f14 5d4 6s2  
[Ar] 4s1  
Crystal Structure
Body Centered Cubic (BCC)  
Body Centered Cubic (BCC)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
74  
99+
19  
99+
Number of Neutrons
110  
27
20  
99+
Number of Electrons
74  
99+
19  
99+
Radius of an Atom
  
  
Atomic Radius
139.00 pm  
39
227.00 pm  
3
Covalent Radius
162.00 pm  
29
203.00 pm  
9
Van der Waals Radius
200.00 pm  
28
275.00 pm  
5
Atomic Weight
183.84 amu  
37
39.10 amu  
99+
Atomic Volume
9.53 cm3/mol  
99+
45.46 cm3/mol  
3
Adjacent Atomic Numbers
  
  
Previous Element
Tantalum
  
Aluminium
  
Next Element
Rhenium
  
Calcium
  
Valence Electron Potential
140.00 (-eV)  
5
10.40 (-eV)  
99+
Lattice Constant
316.52 pm  
99+
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
19.25 g/cm3  
16
0.86 g/cm3  
99+
Density When Liquid (at m.p.)
17.60 g/cm3  
5
0.83 g/cm3  
99+
Tensile Strength
370.00 MPa  
10
Not Available  
Viscosity
Not Available  
Not Available  
Vapor Pressure
  
  
Vapor Pressure at 2000 K
0.00 (Pa)  
32
Not Available  
Elasticity properties
  
  
Shear Modulus
161.00 GPa  
5
1.30 GPa  
99+
Bulk Modulus
310.00 GPa  
4
3.10 GPa  
99+
Young's Modulus
411.00 GPa  
4
3.53 GPa  
99+
Poisson Ratio
0.28  
17
Not Available  
Other Mechanical Properties
Ductile, Malleable  
NA  
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
19.22  
9
0.86  
99+
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Electrical Properties
  
  
Electrical Property
Superconductor  
Conductor  
Resistivity
52.80 nΩ·m  
99+
72.00 nΩ·m  
37
Electrical Conductivity
0.19 106/cm Ω  
10
0.14 106/cm Ω  
14
Electron Affinity
78.60 kJ/mol  
13
48.40 kJ/mol  
22
Thermal Properties
Specific Heat
0.13 J/(kg K)  
39
0.75 J/(kg K)  
6
Molar Heat Capacity
24.27 J/mol·K  
99+
29.60 J/mol·K  
6
Thermal Conductivity
173.00 W/m·K  
7
102.50 W/m·K  
15
Critical Temperature
Not Available  
2,223.00 K  
3
Thermal Expansion
4.50 µm/(m·K)  
99+
83.30 µm/(m·K)  
3
Enthalpy
  
  
Enthalpy of Vaporization
799.10 kJ/mol  
1
77.50 kJ/mol  
99+
Enthalpy of Fusion
35.23 kJ/mol  
1
2.32 kJ/mol  
99+
Enthalpy of Atomization
837.00 kJ/mol  
1
89.50 kJ/mol  
99+
Standard Molar Entropy
32.60 J/mol.K  
99+
64.70 J/mol.K  
18
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