Tungsten Silver Comparison
Periodic Table
Symbol
W
Ag
Group Number
6
12
11
7
Period Number
6
5
Block
d block
d block
Element Family
Transition Metal
Transition Metal
CAS Number
7440337
99+
7440224
99+
Space Group Name
Im_ 3m
Fm_ 3m
Space Group Number
229.00
1
225.00
2
Facts
Interesting Facts
- Tungsten element has the second highest melting point.
- Pure tungsten can easily cut down with the help of hacksaw.
- It is the most reflective element.
- Silver is the second most ductile metal after Gold.
- It is also used in Dentistry as a dental alloys for clips and crowning.
Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals
Earth's crust, Found in Minerals, Ores of metals
History
Who Discovered
Not Available
Unknown
Discovery
In 1781
Before 5000 BC
Abundance
Abundance In Universe
5 * 10-8 %
27
6 * 10-8 %
26
Abundance In Sun
~0.0000004 %
23
~0.0000001 %
26
Abundance In Meteorites
0.00 %
39
0.00 %
38
Abundance In Earth's Crust
0.00 %
39
0.00 %
99+
Abundance In Oceans
0.00 %
18
0.00 %
19
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.
- Silver is mainly used for Jewelry and show piece.
- It is used for manufacturing high quality mirrors due to its reflectivity property.
Industrial Uses
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry
Chemical Industry, Clothing Industry, Electrical Industry
Medical Uses
NA
Dentistry, Pharmaceutical Industry
Other Uses
Alloys
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues
Biological Properties
Toxicity
Non Toxic
Non Toxic
Present in Human Body
Yes
Yes
In Blood
0.00 Blood/mg dm-3
31
0.00 Blood/mg dm-3
29
In Bone
0.00 p.p.m.
35
0.44 p.p.m.
20
Physical Properties
Melting Point
3,410.00 °C
1
961.93 °C
99+
Boiling Point
5,660.00 °C
1
2,212.00 °C
99+
Appearance
Physical State
Solid
Solid
Color
Grayish White
Silvery White
Luster
Lustrous
Metallic
Hardness
Mohs Hardness
7.50
2
2.50
14
Brinell Hardness
2,000.00 MPa
4
251.00 MPa
37
Vickers Hardness
3,430.00 MPa
1
229.00 MPa
30
Speed of Sound
4,620.00 m/s
16
2,680.00 m/s
34
Optical Properties
Reflectivity
62.00 %
13
97.00 %
1
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
Ag
Isotopes
Known Isotopes
33
6
36
3
Electronegativity
Pauling Electronegativity
2.36
2
1.93
9
Sanderson Electronegativity
0.98
23
1.83
11
Allred Rochow Electronegativity
1.40
19
1.42
18
Mulliken-Jaffe Electronegativity
Not Available
1.47
15
Allen Electronegativity
1.47
29
1.87
7
Electropositivity
Pauling Electropositivity
1.64
99+
2.07
99+
Ionization Energies
1st Energy Level
770.00 kJ/mol
16
731.00 kJ/mol
27
2nd Energy Level
1,700.00 kJ/mol
29
2,070.00 kJ/mol
11
3rd Energy Level
Not Available
3,361.00 kJ/mol
19
Electrochemical Equivalent
1.14 g/amp-hr
99+
4.02 g/amp-hr
7
Electron Work Function
4.55 eV
13
4.26 eV
20
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility
Chemical Stability, Ionization, Solubility
Atomic Properties
Atomic Number
74
99+
47
99+
Electron Configuration
[Xe] 4f14 5d4 6s2
[Kr] 4d10 5s1
Crystal Structure
Body Centered Cubic (BCC)
Face Centered Cubic (FCC)
Crystal Lattice
BCC-Crystal-Structure-.jpg#100
FCC-Crystal-Structure-of-Silver.jpg#100
Atom
Number of Protons
74
99+
47
99+
Number of Neutrons
110
27
61
99+
Number of Electrons
74
99+
47
99+
Radius of an Atom
Atomic Radius
139.00 pm
39
144.00 pm
36
Covalent Radius
162.00 pm
29
145.00 pm
39
Van der Waals Radius
200.00 pm
28
172.00 pm
38
Atomic Weight
183.84 amu
37
107.87 amu
99+
Atomic Volume
9.53 cm3/mol
99+
10.30 cm3/mol
99+
Adjacent Atomic Numbers
Valence Electron Potential
140.00 (-eV)
5
11.40 (-eV)
99+
Lattice Constant
316.52 pm
99+
408.53 pm
20
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
10.49 g/cm3
35
Density When Liquid (at m.p.)
17.60 g/cm3
5
9.32 g/cm3
21
Tensile Strength
370.00 MPa
10
Not Available
Viscosity
Not Available
Not Available
Vapor Pressure
Vapor Pressure at 1000 K
Not Available
0.00 (Pa)
14
Vapor Pressure at 2000 K
0.00 (Pa)
32
Not Available
Elasticity properties
Shear Modulus
161.00 GPa
5
30.00 GPa
23
Bulk Modulus
310.00 GPa
4
100.00 GPa
16
Young's Modulus
411.00 GPa
4
83.00 GPa
23
Poisson Ratio
0.28
17
0.37
7
Other Mechanical Properties
Ductile, Malleable
Ductile, Malleable
Magnetic Properties
Magnetic Characteristics
Specific Gravity
19.22
9
10.50
26
Magnetic Ordering
Paramagnetic
Diamagnetic
Susceptibility
Not Available
0.00
5
Electrical Properties
Electrical Property
Superconductor
Conductor
Resistivity
52.80 nΩ·m
99+
15.87 nΩ·m
99+
Electrical Conductivity
0.19 106/cm Ω
10
0.63 106/cm Ω
1
Electron Affinity
78.60 kJ/mol
13
125.60 kJ/mol
5
Thermal Properties
Specific Heat
0.13 J/(kg K)
39
0.24 J/(kg K)
25
Molar Heat Capacity
24.27 J/mol·K
99+
25.35 J/mol·K
99+
Thermal Conductivity
173.00 W/m·K
7
429.00 W/m·K
1
Critical Temperature
Not Available
Not Available
Thermal Expansion
4.50 µm/(m·K)
99+
18.90 µm/(m·K)
23
Enthalpy
Enthalpy of Vaporization
799.10 kJ/mol
1
255.10 kJ/mol
37
Enthalpy of Fusion
35.23 kJ/mol
1
11.30 kJ/mol
31
Enthalpy of Atomization
837.00 kJ/mol
1
284.50 kJ/mol
37
Standard Molar Entropy
32.60 J/mol.K
99+
42.60 J/mol.K
35
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