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Plutonium Palladium Comparison


Palladium Plutonium comparison


Periodic Table

Symbol
Pu   
Pd   

Group Number
0   
18
10   
8

Period Number
7   
5   

Block
f block   
d block   

Element Family
Actinide   
Transition Metal   

CAS Number
7440075   
99+
7440053   
99+

Space Group Name
P121/m1   
Fm_ 3m   

Space Group Number
11.00   
13
225.00   
2

Facts

Interesting Facts
  • Plutonium metal if obtain from ores of uranium metal.
  • Plutonium metal is very sensitive to the change in atmospheric conditions like temperature and pressure.
  
  • 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
Glenn T. Seaborg, Arthur Wahl, Joseph W. Kennedy, Edwin McMillan   
William Hyde Wollaston   

Discovery
In Between 1940 1941   
In 1803   

Abundance
  
  

Abundance In Universe
Not Available   
2 * 10-7 %   
22

Abundance In Sun
~-9999 %   
~0.0000003 %   
24

Abundance In Meteorites
Not Available   
0.00 %   
99+

Abundance In Earth's Crust
Not Available   
0.00 %   
99+

Uses

Uses & Benefits
  • Plutonium was used in atomic bombs and still it is being used in various weapons and Ammunition industry.
  • It is also used in nuclear power plant as source of energy for space missions.
  
  • 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, Ammunition Industry   
Aerospace Industry, Automobile Industry, Electronic Industry   

Medical Uses
NA   
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing   

Other Uses
Alloys   
Coinage, Bullion, Jewellery   

Biological Properties
  
  

Toxicity
Toxic   
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   

Physical Properties

Melting Point
639.50 °C   
99+
1,554.90 °C   
22

Boiling Point
3,235.00 °C   
24
2,963.00 °C   
33

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery White   
Silver   

Luster
NA   
Metallic   

Hardness
  
  

Mohs Hardness
Not Available   
4.75   
9

Brinell Hardness
Not Available   
320.00 MPa   
33

Vickers Hardness
Not Available   
121.00 MPa   
36

Speed of Sound
2,260.00 m/s   
99+
3,070.00 m/s   
26

Optical Properties
  
  

Refractive Index
Not Available   
1.72   
1

Reflectivity
Not Available   
84.00 %   
4

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
Pu   
Pd   

Isotopes
  
  

Known Isotopes
20   
19
38   
1

Electronegativity
  
  

Pauling Electronegativity
1.28   
33
2.20   
4

Allred Rochow Electronegativity
1.22   
26
1.35   
21

Allen Electronegativity
Not Available   
1.59   
22

Electropositivity
  
  

Pauling Electropositivity
2.72   
21
1.80   
99+

Ionization Energies
  
  

1st Energy Level
584.70 kJ/mol   
99+
520.23 kJ/mol   
99+

2nd Energy Level
1,128.00 kJ/mol   
99+
7,298.22 kJ/mol   
2

3rd Energy Level
2,084.00 kJ/mol   
99+
11,815.13 kJ/mol   
3

4th Energy Level
3,338.00 kJ/mol   
99+
Not Available   

Electrochemical Equivalent
2.28 g/amp-hr   
22
1.99 g/amp-hr   
30

Electron Work Function
Not Available   
5.12 eV   
3

Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes, Radioactivity   
Chemical Stability, Corrosion, Ionization, Solubility   

Atomic Properties

Atomic Number
94   
24
46   
99+

Electron Configuration
[Rn] 5f6 7s2   
[Kr] 4d10   

Crystal Structure
Monoclinic (MON)   
Face Centered Cubic (FCC)   

Crystal Lattice
MON-Crystal-Structure-of-Plutonium.jpg#100   
FCC-Crystal-Structure-of-Palladium.jpg#100   

Atom
  
  

Number of Protons
94   
24
46   
99+

Number of Neutrons
150   
11
60   
99+

Number of Electrons
94   
24
46   
99+

Radius of an Atom
  
  

Atomic Radius
159.00 pm   
28
137.00 pm   
40

Covalent Radius
187.00 pm   
20
139.00 pm   
99+

Van der Waals Radius
200.00 pm   
28
163.00 pm   
40

Atomic Weight
244.00 amu   
19
106.42 amu   
99+

Atomic Volume
12.32 cm3/mol   
99+
8.90 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Neptunium
  
Rhodium
  

Next Element
Americium
  
Silver
  

Valence Electron Potential
64.90 (-eV)   
21
33.00 (-eV)   
99+

Lattice Constant
618.30 pm   
4
389.07 pm   
25

Lattice Angles
NA   
π/2, π/2, π/2   

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
19.82 g/cm3   
13
12.02 g/cm3   
29

Density When Liquid (at m.p.)
16.63 g/cm3   
8
10.38 g/cm3   
17

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)   
26
0.00 (Pa)   
27

Vapor Pressure at 2000 K
2.20 (Pa)   
12
0.00 (Pa)   
30

Elasticity properties
  
  

Shear Modulus
43.00 GPa   
18
44.00 GPa   
17

Bulk Modulus
Not Available   
180.00 GPa   
9

Young's Modulus
96.00 GPa   
21
121.00 GPa   
16

Poisson Ratio
0.21   
32
0.39   
5

Other Mechanical Properties
Ductile, Malleable   
Ductile, Malleable, Weldable   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
19.84   
7
12.02   
21

Magnetic Ordering
Paramagnetic   
Diamagnetic   

Electrical Properties
  
  

Electrical Property
Poor Conductor   
Conductor   

Resistivity
1.46 nΩ·m   
99+
105.40 nΩ·m   
29

Electrical Conductivity
0.01 106/cm Ω   
99+
0.10 106/cm Ω   
22

Electron Affinity
Not Available   
54.23 kJ/mol   
17

Thermal Properties

Specific Heat
0.13 J/(kg K)   
39
0.24 J/(kg K)   
23

Molar Heat Capacity
35.50 J/mol·K   
3
25.98 J/mol·K   
33

Thermal Conductivity
6.74 W/m·K   
99+
71.80 W/m·K   
23

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
46.70 µm/(m·K)   
6
11.80 µm/(m·K)   
33

Enthalpy
  
  

Enthalpy of Vaporization
344.00 kJ/mol   
25
376.60 kJ/mol   
19

Enthalpy of Fusion
2.82 kJ/mol   
99+
16.74 kJ/mol   
18

Enthalpy of Atomization
360.00 kJ/mol   
26
393.30 kJ/mol   
22

Standard Molar Entropy
Not Available   
37.60 J/mol.K   
40

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