Symbol
Pd
  
Mg
  
Period Number
5
  
3
  
Block
d block
  
s block
  
Element Family
Transition Metal
  
Alkaline Earth
  
Space Group Name
Fm_ 3m
  
P63/mmc
  
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
  
- Magnesium ions are present in every chlorophyll of every green plant .
- Controlling Magnesium fire by pouring water on it will result in explosions.
  
Sources
Ores of metals
  
By Electrolysis Process, In Ocean, Mining
  
History
  
  
Who Discovered
William Hyde Wollaston
  
Joseph Black
  
Discovery
In 1803
  
In 1755
  
Abundance
  
  
Abundance In Sun
~0.0000003 %
  
24
Abundance In Earth's Crust
Abundance In Oceans
Not Available
  
Abundance In Humans
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.
  
- Magnesium aluminum alloy improves the mechanical strength and welding characteristics and hence it is used in aeroplane and car manufacturing.
-
It is also used to remove sulfur from the molten iron and steel.
  
Industrial Uses
Aerospace Industry, Automobile Industry, Electronic Industry
  
Aerospace Industry, Ammunition Industry, Automobile Industry, Chemical Industry, Pharmaceutical Industry
  
Medical Uses
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing
  
NA
  
Other Uses
Coinage, Bullion, Jewellery
  
Surgical Instruments Manufacturing
  
Biological Properties
  
  
Toxicity
Toxic
  
Non Toxic
  
Present in Human Body
No
  
Yes
  
In Blood
Not Available
  
37.80 Blood/mg dm-3
  
5
In Bone
Not Available
  
1,800.00 p.p.m.
  
4
Melting Point
1,554.90 °C
  
22
Boiling Point
2,963.00 °C
  
33
1,107.00 °C
  
99+
Appearance
  
  
Physical State
Solid
  
Solid
  
Color
Silver
  
Gray
  
Luster
Metallic
  
NA
  
Hardness
  
  
Vickers Hardness
Not Available
  
Speed of Sound
3,070.00 m/s
  
26
4,940.00 m/s
  
11
Optical Properties
  
  
Refractive Index
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
  
Mg
  
Isotopes
  
  
Electronegativity
  
  
Pauling Electronegativity
Sanderson Electronegativity
Not Available
  
Allred Rochow Electronegativity
Mulliken-Jaffe Electronegativity
Not Available
  
Electropositivity
  
  
Pauling Electropositivity
Ionization Energies
  
  
1st Energy Level
520.23 kJ/mol
  
99+
737.70 kJ/mol
  
24
2nd Energy Level
7,298.22 kJ/mol
  
2
1,450.70 kJ/mol
  
99+
3rd Energy Level
11,815.13 kJ/mol
  
3
7,732.70 kJ/mol
  
5
4th Energy Level
Not Available
  
10,542.50 kJ/mol
  
4
5th Energy Level
Not Available
  
13,630.00 kJ/mol
  
3
6th Energy Level
Not Available
  
18,020.00 kJ/mol
  
3
7th Energy level
Not Available
  
21,711.00 kJ/mol
  
3
8th Energy Level
Not Available
  
25,661.00 kJ/mol
  
3
9th Energy Level
Not Available
  
31,653.00 kJ/mol
  
3
10th Energy Level
Not Available
  
35,458.00 kJ/mol
  
5
11th Energy Level
Not Available
  
169,988.00 kJ/mol
  
1
12th Energy Level
Not Available
  
189,368.00 kJ/mol
  
1
Electrochemical Equivalent
1.99 g/amp-hr
  
30
0.45 g/amp-hr
  
99+
Other Chemical Properties
Chemical Stability, Corrosion, Ionization, Solubility
  
Corrosion, Highly Inflammable, Ionization, Solubility
  
Electron Configuration
[Kr] 4d10
  
[Ne] 3s2
  
Crystal Structure
Face Centered Cubic (FCC)
  
Hexagonal Close Packed (HCP)
  
Crystal Lattice
FCC-Crystal-Structure-of-Palladium.jpg#100
  
HCP-Crystal-Structure-of-Magnesium.jpg#100
  
Atom
  
  
Radius of an Atom
  
  
Atomic Weight
106.42 amu
  
99+
Atomic Volume
8.90 cm3/mol
  
99+
13.97 cm3/mol
  
37
Adjacent Atomic Numbers
  
  
Valence Electron Potential
33.00 (-eV)
  
99+
40.00 (-eV)
  
99+
Lattice Angles
π/2, π/2, π/2
  
π/2, π/2, 2 π/3
  
Lattice C/A Ratio
Not Available
  
Not Available
  
Density
  
  
Density At Room Temperature
12.02 g/cm3
  
29
1.74 g/cm3
  
99+
Density When Liquid (at m.p.)
10.38 g/cm3
  
17
1.58 g/cm3
  
99+
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
  
  
Other Mechanical Properties
Ductile, Malleable, Weldable
  
NA
  
Magnetic Characteristics
  
  
Magnetic Ordering
Diamagnetic
  
Paramagnetic
  
Electrical Properties
  
  
Electrical Property
Conductor
  
Conductor
  
Resistivity
105.40 nΩ·m
  
29
43.90 nΩ·m
  
99+
Electrical Conductivity
0.10 106/cm Ω
  
22
0.23 106/cm Ω
  
7
Electron Affinity
54.23 kJ/mol
  
17
0.00 kJ/mol
  
40
Specific Heat
0.24 J/(kg K)
  
23
1.02 J/(kg K)
  
4
Molar Heat Capacity
25.98 J/mol·K
  
33
24.87 J/mol·K
  
99+
Thermal Conductivity
71.80 W/m·K
  
23
156.00 W/m·K
  
8
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
11.80 µm/(m·K)
  
33
24.80 µm/(m·K)
  
15
Enthalpy
  
  
Enthalpy of Vaporization
376.60 kJ/mol
  
19
128.70 kJ/mol
  
99+
Enthalpy of Fusion
16.74 kJ/mol
  
18
8.95 kJ/mol
  
39
Enthalpy of Atomization
393.30 kJ/mol
  
22
148.50 kJ/mol
  
99+
Standard Molar Entropy
37.60 J/mol.K
  
40
32.70 J/mol.K
  
99+