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Properties of Palladium and Silver

Palladium
Silver
Properties of Silver & Palladium


Physical Properties
Melting Point
1,554.90 °C   
22
961.93 °C   
99+
Boiling Point
2,963.00 °C   
33
2,212.00 °C   
99+
Hardness
  
  
Mohs Hardness
4.75   
9
2.50   
14
Brinell Hardness
320.00 MPa   
33
251.00 MPa   
37
Vickers Hardness
121.00 MPa   
36
229.00 MPa   
30
Optical Properties
  
  
Refractive Index
1.72   
1
Not Available   
Reflectivity
84.00 %   
4
97.00 %   
1
Speed of Sound
3,070.00 m/s   
26
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
Pd   
Ag   
Isotopes
  
  
Known Isotopes
38   
1
36   
3
Electronegativity
  
  
Pauling Electronegativity
2.20   
4
1.93   
9
Sanderson Electronegativity
Not Available   
1.83   
11
Allred Rochow Electronegativity
1.35   
21
1.42   
18
Mulliken-Jaffe Electronegativity
Not Available   
1.47   
15
Allen Electronegativity
1.59   
22
1.87   
7
Electropositivity
  
  
Pauling Electropositivity
1.80   
99+
2.07   
99+
Ionization Energies
  
  
1st Energy Level
520.23 kJ/mol   
99+
731.00 kJ/mol   
27
2nd Energy Level
7,298.22 kJ/mol   
2
2,070.00 kJ/mol   
11
3rd Energy Level
11,815.13 kJ/mol   
3
3,361.00 kJ/mol   
19
Electrochemical Equivalent
1.99 g/amp-hr   
30
4.02 g/amp-hr   
7
Electron Work Function
5.12 eV   
3
4.26 eV   
20
Other Chemical Properties
?
Stable metals are non radioactive metals and have zero valence electrons in the outer shell.Chemical Stability, 
?
Corrosion is a process which converts refined metals to their more stable forms, for example, its oxide and hydroxide. This process of metals getting corroded is a gradual destruction of metals by chemical reactions.Corrosion, 
?
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   
?
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
12.02 g/cm3   
29
10.49 g/cm3   
35
Density When Liquid (at m.p.)
10.38 g/cm3   
17
9.32 g/cm3   
21
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)   
27
0.00 (Pa)   
14
Vapor Pressure at 2000 K
0.00 (Pa)   
30
Not Available   
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
Not Available   
Elasticity properties
  
  
Shear Modulus
44.00 GPa   
17
30.00 GPa   
23
Bulk Modulus
180.00 GPa   
9
100.00 GPa   
16
Young's Modulus
121.00 GPa   
16
83.00 GPa   
23
Poisson Ratio
0.39   
5
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, 
?
Weldability of metals defines their ability to be welded.This property of metals also known as joinability.Weldable   
?
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
Pd   
Ag   
Group Number
10   
8
11   
7
Period Number
5   
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
46   
99+
47   
99+
Atomic Weight
106.42 amu   
99+
107.87 amu   
99+
Atomic Volume
8.90 cm3/mol   
99+
10.30 cm3/mol   
99+
Electron Configuration
[Kr] 4d10   
[Kr] 4d10 5s1   
Valence Electron Potential
33.00 (-eV)   
99+
11.40 (-eV)   
99+
Atom
  
  
Number of Protons
46   
99+
47   
99+
Number of Neutrons
60   
99+
61   
99+
Number of Electrons
46   
99+
47   
99+
Crystal Structure
?
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)   
?
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
FCC-Crystal-Structure-of-Palladium.jpg#100   
FCC-Crystal-Structure-of-Silver.jpg#100   
Radius of an Atom
  
  
Atomic Radius
137.00 pm   
40
144.00 pm   
36
Covalent Radius
139.00 pm   
99+
145.00 pm   
39
Van der Waals Radius
163.00 pm   
40
172.00 pm   
38
Lattice Constant
389.07 pm   
25
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
Silver
  
Cadmium
  
Previous Element
Rhodium
  
Palladium
  
Magnetic Properties
Electrical Properties
  
  
Resistivity
105.40 nΩ·m   
29
15.87 nΩ·m   
99+
Electrical Conductivity
0.10 106/cm Ω   
22
0.63 106/cm Ω   
1
Electron Affinity
54.23 kJ/mol   
17
125.60 kJ/mol   
5
Electrical Property
?
Conductor metals have very low resistance to electric currents. They can easily conduct electric current through them.Conductor   
?
Conductor metals have very low resistance to electric currents. They can easily conduct electric current through them.Conductor   
Magnetic Characteristics
  
  
Specific Gravity
12.02   
21
10.50   
26
Magnetic Ordering
?
Diamagnetic metals produce a magnetic field opposite to the applied magnetic field. Thus, they are repelled by magnets and show magnetic nature.Diamagnetic   
?
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
0.24 J/(kg K)   
23
0.24 J/(kg K)   
25
Thermal Conductivity
71.80 W/m·K   
23
429.00 W/m·K   
1
Critical Temperature
Not Available   
Not Available   
Molar Heat Capacity
25.98 J/mol·K   
33
25.35 J/mol·K   
99+
Thermal Expansion
11.80 µm/(m·K)   
33
18.90 µm/(m·K)   
23
Standard Molar Entropy
37.60 J/mol.K   
40
42.60 J/mol.K   
35
Enthalpy
  
  
Enthalpy of Vaporization
376.60 kJ/mol   
19
255.10 kJ/mol   
37
Enthalpy of Fusion
16.74 kJ/mol   
18
11.30 kJ/mol   
31
Enthalpy of Atomization
393.30 kJ/mol   
22
284.50 kJ/mol   
37
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