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Properties of Tungsten and Silver

Tungsten
Silver
Properties of Silver & Tungsten


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+
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
Optical Properties
  
  
Refractive Index
Not Available   
Not Available   
Reflectivity
62.00 %   
13
97.00 %   
1
Speed of Sound
4,620.00 m/s   
16
2,680.00 m/s   
34
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 is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes.Ionization, 
?
Radioactive metals emit particles and radiation from their nuclei. This process comes in the picture because their nuclei experience the intense conflict between two strong forces. This metal also have radioactive isotopes.Radioactive Isotopes, 
?
Solubility is a chemical property referring to the ability for a given substance, the solute, to dissolve in a solvent.Solubility   
?
Stable metals are non radioactive metals and have zero valence electrons in the outer shell.Chemical Stability, 
?
Ionization is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes.Ionization, 
?
Solubility is a chemical property referring to the ability for a given substance, the solute, to dissolve in a solvent.Solubility   
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
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available   
0.00 (Pa)   
14
Vapor Pressure at 2000 K
0.00 (Pa)   
32
Not Available   
Tensile Strength
370.00 MPa   
10
Not Available   
Viscosity
Not Available   
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
?
Ductility of metals defines their ability to deform under tensile stress; this is often characterized by the metals ability to be stretched into a wire.Ductile, 
?
Malleability of metals defines their ability to deform under compressive stress; this is often characterized by the metals ability to form a thin sheet by hammering or rolling.Malleable   
?
Ductility of metals defines their ability to deform under tensile stress; this is often characterized by the metals ability to be stretched into a wire.Ductile, 
?
Malleability of metals defines their ability to deform under compressive stress; this is often characterized by the metals ability to form a thin sheet by hammering or rolling.Malleable   
Periodic Table
Symbol
W   
Ag   
Group Number
6   
12
11   
7
Period Number
6   
5   
Block
?
The d-block is on the middle of the periodic table and includes elements from columns 3 through 12. These elements are also known as the transition metals because they show a transitivity in their properties i.e. they show a trend in their properties.d block   
?
The d-block is on the middle of the periodic table and includes elements from columns 3 through 12. These elements are also known as the transition metals because they show a transitivity in their properties i.e. they show a trend in their properties.d block   
Element Family
?
What is Transition Metal? All transition metals are placed under the d-block from group number 3 to 12. Transition metals show characteristics like malleability, ductility and are good conductor of electricity.Transition Metal   
?
What is Transition Metal? All transition metals are placed under the d-block from group number 3 to 12. Transition metals show characteristics like malleability, ductility and are good conductor of electricity.Transition Metal   
Atomic Properties
Atomic Number
74   
99+
47   
99+
Atomic Weight
183.84 amu   
37
107.87 amu   
99+
Atomic Volume
9.53 cm3/mol   
99+
10.30 cm3/mol   
99+
Electron Configuration
[Xe] 4f14 5d4 6s2   
[Kr] 4d10 5s1   
Valence Electron Potential
140.00 (-eV)   
5
11.40 (-eV)   
99+
Atom
  
  
Number of Protons
74   
99+
47   
99+
Number of Neutrons
110   
27
61   
99+
Number of Electrons
74   
99+
47   
99+
Crystal Structure
?
BCC is a basis type of cubic crystal structure. In crystallography, the cubic crystals structure is a crystal system where the unit cell has a cube shaped structure. This is one of the simplest crystal structure found in crystals of metal.Body Centered Cubic (BCC)   
?
In crystallography, the cubic (or isometric) crystal system is a crystal system where the unit cell is in the shape of a cube. This is one of the most common and simplest shapes found in crystals and minerals.Face Centered Cubic (FCC)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
FCC-Crystal-Structure-of-Silver.jpg#100   
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
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   
Adjacent Atomic Numbers
  
  
Next Element
Rhenium
  
Cadmium
  
Previous Element
Tantalum
  
Palladium
  
Magnetic Properties
Electrical Properties
  
  
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
Electrical Property
?
Under certain conditions, superconductor metals offer zero resistance to electric current it means this type of metals will conduct electricity without any resistance.Superconductor   
?
Conductor metals have very low resistance to electric currents. They can easily conduct electric current through them.Conductor   
Magnetic Characteristics
  
  
Specific Gravity
19.22   
9
10.50   
26
Magnetic Ordering
?
Paramagnetic metals are slightly attracted by magnet, but they can’t retain the magnetic effect once they are removed from the magnetic field.Paramagnetic   
?
Diamagnetic metals produce a magnetic field opposite to the applied magnetic field. Thus, they are repelled by magnets and show magnetic nature.Diamagnetic   
Permeability
Not Available   
Not Available   
Susceptibility
Not Available   
0.00   
5
Thermal Properties
Specific Heat
0.13 J/(kg K)   
39
0.24 J/(kg K)   
25
Thermal Conductivity
173.00 W/m·K   
7
429.00 W/m·K   
1
Critical Temperature
Not Available   
Not Available   
Molar Heat Capacity
24.27 J/mol·K   
99+
25.35 J/mol·K   
99+
Thermal Expansion
4.50 µm/(m·K)   
99+
18.90 µm/(m·K)   
23
Standard Molar Entropy
32.60 J/mol.K   
99+
42.60 J/mol.K   
35
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
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