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Palladium vs Uranium

Palladium
Uranium
Uranium vs Palladium


Periodic Table
Symbol
Pd   
U   
Group Number
10   
8
0   
18
Period Number
5   
7   
Block
d block   
f block   
Element Family
Transition Metal   
Actinide   
CAS Number
7440053   
99+
7440611   
28
Space Group Name
Fm_ 3m   
Cmcm   
Space Group Number
225.00   
2
63.00   
10
Facts
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
  
  • Major mining countries of Uranium include Russia, Australia, Namibia, Canada and Niger and total 33% Uranium are mine in Kazakhstan.
  
Sources
Ores of metals   
Earth's crust, Mining, Ores of Minerals   
History
  
  
Who Discovered
William Hyde Wollaston   
Not Available   
Discovery
In 1803   
In 1789   
Abundance
  
  
Abundance In Universe
2 * 10-7 %   
22
2 * 10-8 %   
29
Abundance In Sun
~0.0000003 %   
24
~0.0000001 %   
26
Abundance In Meteorites
0.00 %   
99+
0.00 %   
99+
Abundance In Earth's Crust
0.00 %   
99+
0.00 %   
36
Abundance In Oceans
Not Available   
0.00 %   
11
Uses
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.
  
  • The main use of this metal include nuclear fuel which is used to generate electricity yin nuclear power stations.
  • Synthetic elements like transuranium are made from Uranium metal.
  
Industrial Uses
Aerospace Industry, Automobile Industry, Electronic Industry   
Ammunition Industry, Chemical Industry   
Medical Uses
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing   
NA   
Other Uses
Coinage, Bullion, Jewellery   
Alloys, Jewellery, Nuclear Reactor's Fuel, Sculptures, Statues   
Biological Properties
  
  
Toxicity
Toxic   
Toxic   
Present in Human Body
No   
No   
Physical Properties
Melting Point
1,554.90 °C   
22
1,132.00 °C   
39
Boiling Point
2,963.00 °C   
33
3,818.00 °C   
16
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silver   
Silvery Gray   
Luster
Metallic   
Metallic   
Hardness
  
  
Mohs Hardness
4.75   
9
6.00   
6
Brinell Hardness
320.00 MPa   
33
2,350.00 MPa   
2
Vickers Hardness
121.00 MPa   
36
1,960.00 MPa   
2
Speed of Sound
3,070.00 m/s   
26
3,155.00 m/s   
25
Optical Properties
  
  
Refractive Index
1.72   
1
Not Available   
Reflectivity
84.00 %   
4
Not Available   
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
Pd   
U   
Isotopes
  
  
Known Isotopes
38   
1
25   
14
Electronegativity
  
  
Pauling Electronegativity
2.20   
4
1.38   
28
Allred Rochow Electronegativity
1.35   
21
1.22   
26
Allen Electronegativity
1.59   
22
Not Available   
Electropositivity
  
  
Pauling Electropositivity
1.80   
99+
2.62   
26
Ionization Energies
  
  
1st Energy Level
520.23 kJ/mol   
99+
597.60 kJ/mol   
99+
2nd Energy Level
7,298.22 kJ/mol   
2
1,420.00 kJ/mol   
99+
3rd Energy Level
11,815.13 kJ/mol   
3
1,900.00 kJ/mol   
99+
4th Energy Level
Not Available   
3,145.00 kJ/mol   
99+
Electrochemical Equivalent
1.99 g/amp-hr   
30
1.48 g/amp-hr   
99+
Electron Work Function
5.12 eV   
3
3.63 eV   
30
Other Chemical Properties
Chemical Stability, Corrosion, Ionization, Solubility   
Ionization, Radioactive Isotopes, Radioactivity   
Atomic Properties
Atomic Number
46   
99+
92   
26
Electron Configuration
[Kr] 4d10   
[Rn] 5f3 6d1 7s2   
Crystal Structure
Face Centered Cubic (FCC)   
Orthorhombic (ORTH)   
Crystal Lattice
FCC-Crystal-Structure-of-Palladium.jpg#100   
ORTH-Crystal-Structure-of-Uranium.jpg#100   
Atom
  
  
Number of Protons
46   
99+
92   
26
Number of Neutrons
60   
99+
146   
13
Number of Electrons
46   
99+
92   
26
Radius of an Atom
  
  
Atomic Radius
137.00 pm   
40
156.00 pm   
29
Covalent Radius
139.00 pm   
99+
196.00 pm   
14
Van der Waals Radius
163.00 pm   
40
186.00 pm   
33
Atomic Weight
106.42 amu   
99+
238.03 amu   
21
Atomic Volume
8.90 cm3/mol   
99+
12.59 cm3/mol   
40
Adjacent Atomic Numbers
  
  
Previous Element
Rhodium
  
Protactinium
  
Next Element
Silver
  
Neptunium
  
Valence Electron Potential
33.00 (-eV)   
99+
170.00 (-eV)   
4
Lattice Constant
389.07 pm   
25
295.08 pm   
99+
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
12.02 g/cm3   
29
19.10 g/cm3   
17
Density When Liquid (at m.p.)
10.38 g/cm3   
17
17.30 g/cm3   
7
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)   
27
Not Available   
Vapor Pressure at 2000 K
0.00 (Pa)   
30
0.01 (Pa)   
20
Elasticity properties
  
  
Shear Modulus
44.00 GPa   
17
111.00 GPa   
10
Bulk Modulus
180.00 GPa   
9
100.00 GPa   
16
Young's Modulus
121.00 GPa   
16
208.00 GPa   
10
Poisson Ratio
0.39   
5
0.23   
30
Other Mechanical Properties
Ductile, Malleable, Weldable   
Ductile, Malleable   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
12.02   
21
18.80   
10
Magnetic Ordering
Diamagnetic   
Paramagnetic   
Electrical Properties
  
  
Electrical Property
Conductor   
Poor Conductor   
Resistivity
105.40 nΩ·m   
29
0.28 nΩ·m   
99+
Electrical Conductivity
0.10 106/cm Ω   
22
0.04 106/cm Ω   
37
Electron Affinity
54.23 kJ/mol   
17
Not Available   
Thermal Properties
Specific Heat
0.24 J/(kg K)   
23
0.12 J/(kg K)   
40
Molar Heat Capacity
25.98 J/mol·K   
33
27.67 J/mol·K   
15
Thermal Conductivity
71.80 W/m·K   
23
27.50 W/m·K   
40
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
11.80 µm/(m·K)   
33
13.90 µm/(m·K)   
27
Enthalpy
  
  
Enthalpy of Vaporization
376.60 kJ/mol   
19
477.00 kJ/mol   
13
Enthalpy of Fusion
16.74 kJ/mol   
18
15.48 kJ/mol   
19
Enthalpy of Atomization
393.30 kJ/mol   
22
489.50 kJ/mol   
14
Standard Molar Entropy
37.60 J/mol.K   
40
50.20 J/mol.K   
31
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