Tungsten Indium Comparison
Periodic Table
Symbol
W
In
Group Number
6
12
13
5
Period Number
6
5
Block
d block
p block
Element Family
Transition Metal
Post-Transition
CAS Number
7440337
99+
7440746
17
Space Group Name
Im_ 3m
I4/mmm
Space Group Number
229.00
1
139.00
8
Facts
Interesting Facts
- Tungsten element has the second highest melting point.
- Pure tungsten can easily cut down with the help of hacksaw.
- Luster of Indium is bright in nature.
- Reich and richer were looking for thallium in zinc metal and they discovered Indium metal.
Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals
Mining, Ores of metals
History
Who Discovered
Not Available
Ferdinand Reich and Hieronymous Theodor Richter
Discovery
In 1781
In 1863
Abundance
Abundance In Universe
5 * 10-8 %
27
3 * 10-8 %
28
Abundance In Sun
~0.0000004 %
23
~0.0000004 %
23
Abundance In Meteorites
0.00 %
39
0.00 %
99+
Abundance In Earth's Crust
0.00 %
39
0.00 %
99+
Abundance In Oceans
0.00 %
18
0.00 %
99+
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.
- It is used to produce indium tin oxide (ITO), it is used in manufacturing touch screens, flat screen TVs and solar panels.
- Its nitride, phosphide and antimonide are used in transistors and microchips.
Industrial Uses
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry
Aerospace Industry, Automobile Industry
Medical Uses
NA
Medical Research
Other Uses
Alloys
Alloys, In Nuclear Reactors
Biological Properties
Toxicity
Non Toxic
Non Toxic
Present in Human Body
Yes
Yes
In Blood
0.00 Blood/mg dm-3
31
Not Available
In Bone
0.00 p.p.m.
35
Not Available
Physical Properties
Melting Point
3,410.00 °C
1
156.61 °C
99+
Boiling Point
5,660.00 °C
1
2,000.00 °C
99+
Appearance
Physical State
Solid
Solid
Color
Grayish White
Silvery Gray
Luster
Lustrous
Lustrous
Hardness
Mohs Hardness
7.50
2
1.20
20
Brinell Hardness
2,000.00 MPa
4
8.80 MPa
99+
Vickers Hardness
3,430.00 MPa
1
Not Available
Speed of Sound
4,620.00 m/s
16
1,215.00 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
In
Isotopes
Known Isotopes
33
6
35
4
Electronegativity
Pauling Electronegativity
2.36
2
1.78
16
Sanderson Electronegativity
0.98
23
2.14
8
Allred Rochow Electronegativity
1.40
19
1.49
13
Mulliken-Jaffe Electronegativity
Not Available
1.76
10
Allen Electronegativity
1.47
29
1.66
18
Electropositivity
Pauling Electropositivity
1.64
99+
2.22
38
Ionization Energies
1st Energy Level
770.00 kJ/mol
16
558.30 kJ/mol
99+
2nd Energy Level
1,700.00 kJ/mol
29
1,820.70 kJ/mol
18
3rd Energy Level
Not Available
2,704.00 kJ/mol
39
4th Energy Level
Not Available
5,210.00 kJ/mol
17
Electrochemical Equivalent
1.14 g/amp-hr
99+
1.43 g/amp-hr
99+
Electron Work Function
4.55 eV
13
4.12 eV
24
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility
Ionization, Radioactive Isotopes, Radioactivity, Solubility
Atomic Properties
Atomic Number
74
99+
49
99+
Electron Configuration
[Xe] 4f14 5d4 6s2
[Kr] 4d10 5s2 5p1
Crystal Structure
Body Centered Cubic (BCC)
Tetragonal (TETR)
Crystal Lattice
BCC-Crystal-Structure-.jpg#100
TETR-Crystal-Structure-of-Indium.jpg#100
Atom
Number of Protons
74
99+
49
99+
Number of Neutrons
110
27
66
99+
Number of Electrons
74
99+
49
99+
Radius of an Atom
Atomic Radius
139.00 pm
39
167.00 pm
24
Covalent Radius
162.00 pm
29
142.00 pm
99+
Van der Waals Radius
200.00 pm
28
193.00 pm
31
Atomic Weight
183.84 amu
37
114.82 amu
99+
Atomic Volume
9.53 cm3/mol
99+
15.70 cm3/mol
33
Adjacent Atomic Numbers
Valence Electron Potential
140.00 (-eV)
5
54.00 (-eV)
25
Lattice Constant
316.52 pm
99+
325.23 pm
99+
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
7.31 g/cm3
99+
Density When Liquid (at m.p.)
17.60 g/cm3
5
7.02 g/cm3
33
Tensile Strength
370.00 MPa
10
2.50 MPa
21
Viscosity
Not Available
Not Available
Vapor Pressure
Vapor Pressure at 1000 K
Not Available
0.01 (Pa)
11
Vapor Pressure at 2000 K
0.00 (Pa)
32
Not Available
Elasticity properties
Shear Modulus
161.00 GPa
5
Not Available
Bulk Modulus
310.00 GPa
4
Not Available
Young's Modulus
411.00 GPa
4
11.00 GPa
99+
Poisson Ratio
0.28
17
Not Available
Other Mechanical Properties
Ductile, Malleable
Ductile, Malleable
Magnetic Properties
Magnetic Characteristics
Specific Gravity
19.22
9
7.31
99+
Magnetic Ordering
Paramagnetic
Diamagnetic
Electrical Properties
Electrical Property
Superconductor
Conductor
Resistivity
52.80 nΩ·m
99+
83.70 nΩ·m
34
Electrical Conductivity
0.19 106/cm Ω
10
0.12 106/cm Ω
17
Electron Affinity
78.60 kJ/mol
13
28.90 kJ/mol
31
Thermal Properties
Specific Heat
0.13 J/(kg K)
39
0.23 J/(kg K)
27
Molar Heat Capacity
24.27 J/mol·K
99+
26.74 J/mol·K
25
Thermal Conductivity
173.00 W/m·K
7
81.80 W/m·K
21
Critical Temperature
Not Available
Not Available
Thermal Expansion
4.50 µm/(m·K)
99+
32.10 µm/(m·K)
9
Enthalpy
Enthalpy of Vaporization
799.10 kJ/mol
1
226.40 kJ/mol
40
Enthalpy of Fusion
35.23 kJ/mol
1
3.28 kJ/mol
99+
Enthalpy of Atomization
837.00 kJ/mol
1
242.70 kJ/mol
99+
Standard Molar Entropy
32.60 J/mol.K
99+
57.80 J/mol.K
22
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