Symbol
Bk
  
Pd
  
Group Number
Not Available
  
Period Number
7
  
5
  
Block
f block
  
d block
  
Element Family
Actinide
  
Transition Metal
  
Space Group Name
P63/mmc
  
Fm_ 3m
  
Interesting Facts
- X-ray Diffraction- different compounds of Berkelium metals are identified using it.
Commercial uses of Berkelium metal are not yet discovered.
  
- 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
Bombarding Americium with Alpha Particles.
  
Ores of metals
  
History
  
  
Who Discovered
Lawrence Berkeley National Laboratory
  
William Hyde Wollaston
  
Discovery
In 1949
  
In 1803
  
Abundance
  
  
Abundance In Universe
Not Available
  
Abundance In Sun
~-9999 %
  
~0.0000003 %
  
24
Abundance In Meteorites
Not Available
  
Abundance In Earth's Crust
Not Available
  
Uses & Benefits
- This metal is very rare and has no commercial uses.
  
- 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
NA
  
Aerospace Industry, Automobile Industry, Electronic Industry
  
Medical Uses
NA
  
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing
  
Other Uses
NA
  
Coinage, Bullion, Jewellery
  
Biological Properties
  
  
Toxicity
Unknown
  
Toxic
  
Present in Human Body
No
  
No
  
In Blood
0.00 Blood/mg dm-3
  
37
Not Available
  
In Bone
0.00 p.p.m.
  
36
Not Available
  
Melting Point
1,554.90 °C
  
22
Boiling Point
2,627.00 °C
  
40
2,963.00 °C
  
33
Appearance
  
  
Physical State
Solid
  
Solid
  
Color
Silver
  
Silver
  
Luster
Metallic
  
Metallic
  
Hardness
  
  
Mohs Hardness
Not Available
  
Brinell Hardness
Not Available
  
Vickers Hardness
Not Available
  
Speed of Sound
Not Available
  
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
Bk
  
Pd
  
Isotopes
  
  
Electronegativity
  
  
Pauling Electronegativity
Allred Rochow Electronegativity
Electropositivity
  
  
Pauling Electropositivity
Ionization Energies
  
  
1st Energy Level
601.00 kJ/mol
  
99+
520.23 kJ/mol
  
99+
2nd Energy Level
1,186.00 kJ/mol
  
99+
7,298.22 kJ/mol
  
2
3rd Energy Level
2,152.00 kJ/mol
  
99+
11,815.13 kJ/mol
  
3
4th Energy Level
3,434.00 kJ/mol
  
99+
Not Available
  
Electrochemical Equivalent
3.07 g/amp-hr
  
16
1.99 g/amp-hr
  
30
Electron Work Function
Not Available
  
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
  
Chemical Stability, Corrosion, Ionization, Solubility
  
Electron Configuration
[Rn] 5f9 7s2
  
[Kr] 4d10
  
Crystal Structure
Double Hexagonal Close Packed (DHCP)
  
Face Centered Cubic (FCC)
  
Crystal Lattice
DHCP-Crystal-Structure-of-Berkelium.jpg#100
  
FCC-Crystal-Structure-of-Palladium.jpg#100
  
Atom
  
  
Radius of an Atom
  
  
Covalent Radius
Not Available
  
Van der Waals Radius
Not Available
  
Atomic Weight
106.42 amu
  
99+
Atomic Volume
Not Available
  
8.90 cm3/mol
  
99+
Adjacent Atomic Numbers
  
  
Valence Electron Potential
45.50 (-eV)
  
36
33.00 (-eV)
  
99+
Lattice Angles
π/2, π/2, 2 π/3
  
π/2, π/2, π/2
  
Lattice C/A Ratio
Not Available
  
Not Available
  
Density
  
  
Density At Room Temperature
14.78 g/cm3
  
22
12.02 g/cm3
  
29
Density When Liquid (at m.p.)
13.25 g/cm3
  
11
10.38 g/cm3
  
17
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
NA
  
Ductile, Malleable, Weldable
  
Magnetic Characteristics
  
  
Magnetic Ordering
Paramagnetic
  
Diamagnetic
  
Electrical Properties
  
  
Electrical Property
Conductor
  
Conductor
  
Resistivity
Not Available
  
105.40 nΩ·m
  
29
Electrical Conductivity
Not Available
  
0.10 10
6/cm Ω
  
22
Electron Affinity
Not Available
  
54.23 kJ/mol
  
17
Specific Heat
Not Available
  
0.24 J/(kg K)
  
23
Molar Heat Capacity
Not Available
  
25.98 J/mol·K
  
33
Thermal Conductivity
10.00 W/m·K
  
99+
71.80 W/m·K
  
23
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
Not Available
  
11.80 µm/(m·K)
  
33
Enthalpy
  
  
Enthalpy of Vaporization
Not Available
  
376.60 kJ/mol
  
19
Enthalpy of Fusion
Not Available
  
16.74 kJ/mol
  
18
Enthalpy of Atomization
Not Available
  
393.30 kJ/mol
  
22
Standard Molar Entropy
Not Available
  
37.60 J/mol.K
  
40