Symbol
In
  
Pd
  
Period Number
5
  
5
  
Block
p block
  
d block
  
Element Family
Post-Transition
  
Transition Metal
  
Space Group Name
I4/mmm
  
Fm_ 3m
  
Interesting Facts
- Luster of Indium is bright in nature.
- Reich and richer were looking for thallium in zinc metal and they discovered Indium metal.
  
- Palladium alloys are used for Jewelry contains (95% Palladium and 5% Ruthenium)
- In the late 1800s, Palladium metal used have more economical value than the Platinum metal.
- Palladium element is known as a good catalyst
  
Sources
Mining, Ores of metals
  
Ores of metals
  
History
  
  
Who Discovered
Ferdinand Reich and Hieronymous Theodor Richter
  
William Hyde Wollaston
  
Discovery
In 1863
  
In 1803
  
Abundance
  
  
Abundance In Sun
~0.0000004 %
  
23
~0.0000003 %
  
24
Abundance In Earth's Crust
Abundance In Oceans
Not Available
  
Uses & Benefits
- 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.
  
- Mostly palladium metal is used in catalytic converters. In electronic industry it is used in ceramic capacitors of mobile and computer.
- It is used in jewellery and dental fillings and crowns.
  
Industrial Uses
Aerospace Industry, Automobile Industry
  
Aerospace Industry, Automobile Industry, Electronic Industry
  
Medical Uses
Medical Research
  
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing
  
Other Uses
Alloys, In Nuclear Reactors
  
Coinage, Bullion, Jewellery
  
Biological Properties
  
  
Toxicity
Non Toxic
  
Toxic
  
Present in Human Body
Yes
  
No
  
Melting Point
1,554.90 °C
  
22
Boiling Point
2,000.00 °C
  
99+
2,963.00 °C
  
33
Appearance
  
  
Physical State
Solid
  
Solid
  
Color
Silvery Gray
  
Silver
  
Luster
Lustrous
  
Metallic
  
Hardness
  
  
Vickers Hardness
Not Available
  
Speed of Sound
1,215.00 m/s
  
99+
3,070.00 m/s
  
26
Optical Properties
  
  
Refractive Index
Not Available
  
Reflectivity
Not Available
  
Allotropes
No
  
No
  
α Allotropes
Not Available
  
Not Available
  
β Allotropes
Not Available
  
Not Available
  
γ Allotropes
Not Available
  
Not Available
  
Chemical Formula
In
  
Pd
  
Isotopes
  
  
Electronegativity
  
  
Pauling Electronegativity
Sanderson Electronegativity
Not Available
  
Allred Rochow Electronegativity
Mulliken-Jaffe Electronegativity
Not Available
  
Electropositivity
  
  
Pauling Electropositivity
Ionization Energies
  
  
1st Energy Level
558.30 kJ/mol
  
99+
520.23 kJ/mol
  
99+
2nd Energy Level
1,820.70 kJ/mol
  
18
7,298.22 kJ/mol
  
2
3rd Energy Level
2,704.00 kJ/mol
  
39
11,815.13 kJ/mol
  
3
4th Energy Level
5,210.00 kJ/mol
  
17
Not Available
  
Electrochemical Equivalent
1.43 g/amp-hr
  
99+
1.99 g/amp-hr
  
30
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility
  
Chemical Stability, Corrosion, Ionization, Solubility
  
Electron Configuration
[Kr] 4d10 5s2 5p1
  
[Kr] 4d10
  
Crystal Structure
Tetragonal (TETR)
  
Face Centered Cubic (FCC)
  
Crystal Lattice
TETR-Crystal-Structure-of-Indium.jpg#100
  
FCC-Crystal-Structure-of-Palladium.jpg#100
  
Atom
  
  
Radius of an Atom
  
  
Atomic Weight
114.82 amu
  
99+
106.42 amu
  
99+
Atomic Volume
15.70 cm3/mol
  
33
8.90 cm3/mol
  
99+
Adjacent Atomic Numbers
  
  
Valence Electron Potential
54.00 (-eV)
  
25
33.00 (-eV)
  
99+
Lattice Angles
π/2, π/2, π/2
  
π/2, π/2, π/2
  
Lattice C/A Ratio
Not Available
  
Not Available
  
Density
  
  
Density At Room Temperature
7.31 g/cm3
  
99+
12.02 g/cm3
  
29
Density When Liquid (at m.p.)
10.38 g/cm3
  
17
Tensile Strength
Not Available
  
Viscosity
Not Available
  
Not Available
  
Vapor Pressure
  
  
Vapor Pressure at 2000 K
Not Available
  
Elasticity properties
  
  
Shear Modulus
Not Available
  
Bulk Modulus
Not Available
  
Poisson Ratio
Not Available
  
Other Mechanical Properties
Ductile, Malleable
  
Ductile, Malleable, Weldable
  
Magnetic Characteristics
  
  
Magnetic Ordering
Diamagnetic
  
Diamagnetic
  
Electrical Properties
  
  
Electrical Property
Conductor
  
Conductor
  
Resistivity
105.40 nΩ·m
  
29
Electrical Conductivity
0.12 106/cm Ω
  
17
0.10 106/cm Ω
  
22
Electron Affinity
28.90 kJ/mol
  
31
54.23 kJ/mol
  
17
Specific Heat
0.23 J/(kg K)
  
27
0.24 J/(kg K)
  
23
Molar Heat Capacity
26.74 J/mol·K
  
25
25.98 J/mol·K
  
33
Thermal Conductivity
81.80 W/m·K
  
21
71.80 W/m·K
  
23
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
32.10 µm/(m·K)
  
9
11.80 µm/(m·K)
  
33
Enthalpy
  
  
Enthalpy of Vaporization
226.40 kJ/mol
  
40
376.60 kJ/mol
  
19
Enthalpy of Fusion
3.28 kJ/mol
  
99+
16.74 kJ/mol
  
18
Enthalpy of Atomization
242.70 kJ/mol
  
99+
393.30 kJ/mol
  
22
Standard Molar Entropy
57.80 J/mol.K
  
22
37.60 J/mol.K
  
40