Symbol
Pd
  
Md
  
Group Number
Not Available
  
Period Number
5
  
7
  
Block
d block
  
f block
  
Element Family
Transition Metal
  
Actinide
  
Space Group Name
Fm_ 3m
  
Not Available
  
Space Group Number
Not Available
  
Interesting Facts
- 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
  
- Mendelevium metal is synthetically produced metal.
- Mendelevium metal has been produced in only trace amount.
  
Sources
Ores of metals
  
Bombarding Einsteinium with Helium Ions
  
History
  
  
Who Discovered
William Hyde Wollaston
  
Lawrence Berkeley National Laboratory
  
Discovery
In 1803
  
In 1955
  
Abundance
  
  
Abundance In Universe
Not Available
  
Abundance In Sun
~0.0000003 %
  
24
~-9999 %
  
Abundance In Meteorites
Not Available
  
Abundance In Earth's Crust
Not Available
  
Uses & Benefits
- 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.
  
- Currently known uses of Mendelevium metal are limited to research purpose only.
  
Industrial Uses
Aerospace Industry, Automobile Industry, Electronic Industry
  
NA
  
Medical Uses
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing
  
NA
  
Other Uses
Coinage, Bullion, Jewellery
  
NA
  
Biological Properties
  
  
Toxicity
Toxic
  
Unknown
  
Present in Human Body
No
  
No
  
In Blood
Not Available
  
0.00 Blood/mg dm-3
  
37
In Bone
Not Available
  
0.00 p.p.m.
  
36
Melting Point
1,554.90 °C
  
22
Boiling Point
2,963.00 °C
  
33
Not Available
  
Appearance
  
  
Physical State
Solid
  
Solid
  
Color
Silver
  
Unknown
  
Luster
Metallic
  
Metallic
  
Hardness
  
  
Mohs Hardness
Not Available
  
Brinell Hardness
Not Available
  
Vickers Hardness
Not Available
  
Speed of Sound
3,070.00 m/s
  
26
Not Available
  
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
Pd
  
Md
  
Isotopes
  
  
Electronegativity
  
  
Pauling Electronegativity
Allred Rochow Electronegativity
Allen Electronegativity
Not Available
  
Electropositivity
  
  
Pauling Electropositivity
Ionization Energies
  
  
1st Energy Level
520.23 kJ/mol
  
99+
635.00 kJ/mol
  
99+
2nd Energy Level
7,298.22 kJ/mol
  
2
1,235.00 kJ/mol
  
99+
3rd Energy Level
11,815.13 kJ/mol
  
3
2,470.00 kJ/mol
  
99+
4th Energy Level
Not Available
  
3,840.00 kJ/mol
  
99+
Electrochemical Equivalent
1.99 g/amp-hr
  
30
3.21 g/amp-hr
  
12
Electron Work Function
Not Available
  
Other Chemical Properties
Chemical Stability, Corrosion, Ionization, Solubility
  
Ionization, Radioactive Isotopes, Radioactivity
  
Electron Configuration
[Kr] 4d10
  
[Rn] 5f13 7s2
  
Crystal Structure
Face Centered Cubic (FCC)
  
Not Known
  
Crystal Lattice
FCC-Crystal-Structure-of-Palladium.jpg#100
  
Unknown-Crystal-Structure-of-Mendelevium.jpg#100
  
Atom
  
  
Radius of an Atom
  
  
Atomic Radius
Not Available
  
Covalent Radius
Not Available
  
Atomic Weight
106.42 amu
  
99+
Atomic Volume
8.90 cm3/mol
  
99+
Not Available
  
Adjacent Atomic Numbers
  
  
Valence Electron Potential
33.00 (-eV)
  
99+
Not Available
  
Lattice Constant
Not Available
  
Lattice Angles
π/2, π/2, π/2
  
NA
  
Lattice C/A Ratio
Not Available
  
Not Available
  
Density
  
  
Density At Room Temperature
12.02 g/cm
3
  
29
Not Available
  
Density When Liquid (at m.p.)
10.38 g/cm3
  
17
Not Available
  
Tensile Strength
Not Available
  
Not Available
  
Viscosity
Not Available
  
Not Available
  
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available
  
Vapor Pressure at 2000 K
Not Available
  
Elasticity properties
  
  
Shear Modulus
Not Available
  
Bulk Modulus
Not Available
  
Young's Modulus
Not Available
  
Poisson Ratio
Not Available
  
Other Mechanical Properties
Ductile, Malleable, Weldable
  
Unknown
  
Magnetic Characteristics
  
  
Specific Gravity
Not Available
  
Magnetic Ordering
Diamagnetic
  
Unknown
  
Electrical Properties
  
  
Electrical Property
Conductor
  
Unknown
  
Resistivity
105.40 nΩ·m
  
29
Not Available
  
Electrical Conductivity
0.10 10
6/cm Ω
  
22
Not Available
  
Electron Affinity
54.23 kJ/mol
  
17
Not Available
  
Specific Heat
0.24 J/(kg K)
  
23
Not Available
  
Molar Heat Capacity
25.98 J/mol·K
  
33
Not Available
  
Thermal Conductivity
71.80 W/m·K
  
23
Not Available
  
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
11.80 µm/(m·K)
  
33
Not Available
  
Enthalpy
  
  
Enthalpy of Vaporization
376.60 kJ/mol
  
19
Not Available
  
Enthalpy of Fusion
16.74 kJ/mol
  
18
Not Available
  
Enthalpy of Atomization
393.30 kJ/mol
  
22
Not Available
  
Standard Molar Entropy
37.60 J/mol.K
  
40
Not Available