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Palladium vs Zinc

Palladium
Zinc
Zinc vs Palladium


Periodic Table
Symbol
Pd   
Zn   
Group Number
10   
8
12   
6
Period Number
5   
4   
Block
d block   
d block   
Element Family
Transition Metal   
Transition Metal   
CAS Number
7440053   
99+
7440666   
24
Space Group Name
Fm_ 3m   
P63/mmc   
Space Group Number
225.00   
2
194.00   
5
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
  
  • Zinc metal found (obtain) in many forms like granules, foil, dust and in a powder form.
  • The leading producers of Zinc metal are Australia, Canada, China, U.S.A and Peru.
  
Sources
Ores of metals   
Earth's crust, Found in Minerals, Mining, Ores of Minerals   
History
  
  
Who Discovered
William Hyde Wollaston   
Indian metallurgists   
Discovery
In 1803   
Before 1000 BCE   
Abundance
  
  
Abundance In Universe
2 * 10-7 %   
22
3 * 10-5 %   
11
Abundance In Sun
~0.0000003 %   
24
~0.0002 %   
10
Abundance In Meteorites
0.00 %   
99+
0.02 %   
12
Abundance In Earth's Crust
0.00 %   
99+
0.01 %   
16
Abundance In Oceans
Not Available   
0.00 %   
10
Abundance In Humans
Not Available   
0.00 %   
6
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.
  
  • It is mainly used for Galvanizing other metals.
  • It is also used for manufacturing die-casting and it is very essential for automobile industry.
  
Industrial Uses
Aerospace Industry, Automobile Industry, Electronic Industry   
Electrical Industry, Electronic Industry   
Medical Uses
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing   
Pharmaceutical Industry   
Other Uses
Coinage, Bullion, Jewellery   
Alloys   
Biological Properties
  
  
Toxicity
Toxic   
Highly Toxic   
Present in Human Body
No   
Yes   
In Blood
Not Available   
7.00 Blood/mg dm-3   
6
In Bone
Not Available   
170.00 p.p.m.   
6
Physical Properties
Melting Point
1,554.90 °C   
22
419.58 °C   
99+
Boiling Point
2,963.00 °C   
33
907.00 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silver   
Silvery Gray   
Luster
Metallic   
Metallic   
Hardness
  
  
Mohs Hardness
4.75   
9
2.50   
14
Brinell Hardness
320.00 MPa   
33
327.00 MPa   
32
Vickers Hardness
121.00 MPa   
36
Not Available   
Speed of Sound
3,070.00 m/s   
26
3,850.00 m/s   
18
Optical Properties
  
  
Refractive Index
1.72   
1
1.00   
2
Reflectivity
84.00 %   
4
80.00 %   
5
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   
Zn   
Isotopes
  
  
Known Isotopes
38   
1
25   
14
Electronegativity
  
  
Pauling Electronegativity
2.20   
4
1.65   
19
Sanderson Electronegativity
Not Available   
2.23   
6
Allred Rochow Electronegativity
1.35   
21
1.66   
7
Mulliken-Jaffe Electronegativity
Not Available   
1.65   
11
Allen Electronegativity
1.59   
22
1.59   
22
Electropositivity
  
  
Pauling Electropositivity
1.80   
99+
2.35   
35
Ionization Energies
  
  
1st Energy Level
520.23 kJ/mol   
99+
906.40 kJ/mol   
6
2nd Energy Level
7,298.22 kJ/mol   
2
1,733.30 kJ/mol   
27
3rd Energy Level
11,815.13 kJ/mol   
3
3,833.00 kJ/mol   
12
4th Energy Level
Not Available   
5,731.00 kJ/mol   
11
5th Energy Level
Not Available   
7,970.00 kJ/mol   
9
6th Energy Level
Not Available   
10,400.00 kJ/mol   
9
7th Energy level
Not Available   
12,900.00 kJ/mol   
9
8th Energy Level
Not Available   
16,800.00 kJ/mol   
6
9th Energy Level
Not Available   
19,600.00 kJ/mol   
8
10th Energy Level
Not Available   
23,000.00 kJ/mol   
10
11th Energy Level
Not Available   
26,400.00 kJ/mol   
11
12th Energy Level
Not Available   
29,990.00 kJ/mol   
11
13th Energy Level
Not Available   
40,490.00 kJ/mol   
5
14th Energy Level
Not Available   
43,800.00 kJ/mol   
6
15th Energy Level
Not Available   
47,300.00 kJ/mol   
8
16th Energy Level
Not Available   
52,300.00 kJ/mol   
9
17th Energy Level
Not Available   
55,900.00 kJ/mol   
10
18th Energy Level
Not Available   
59,700.00 kJ/mol   
11
19th Energy Level
Not Available   
67,300.00 kJ/mol   
10
20th Energy Level
Not Available   
171,200.00 kJ/mol   
1
21st Energy Level
Not Available   
179,100.00 kJ/mol   
1
Electrochemical Equivalent
1.99 g/amp-hr   
30
1.22 g/amp-hr   
99+
Electron Work Function
5.12 eV   
3
4.33 eV   
17
Other Chemical Properties
Chemical Stability, Corrosion, Ionization, Solubility   
Anti Corrosion, Chemical Stability, Ionization, Radioactive Isotopes   
Atomic Properties
Atomic Number
46   
99+
30   
99+
Electron Configuration
[Kr] 4d10   
[Ar] 3d10 4s2   
Crystal Structure
Face Centered Cubic (FCC)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
FCC-Crystal-Structure-of-Palladium.jpg#100   
HCP-Crystal-Structure-of-Zinc.jpg#100   
Atom
  
  
Number of Protons
46   
99+
30   
99+
Number of Neutrons
60   
99+
35   
99+
Number of Electrons
46   
99+
30   
99+
Radius of an Atom
  
  
Atomic Radius
137.00 pm   
40
134.00 pm   
99+
Covalent Radius
139.00 pm   
99+
122.00 pm   
99+
Van der Waals Radius
163.00 pm   
40
139.00 pm   
99+
Atomic Weight
106.42 amu   
99+
65.38 amu   
99+
Atomic Volume
8.90 cm3/mol   
99+
9.20 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Rhodium
  
Copper
  
Next Element
Silver
  
Gallium
  
Valence Electron Potential
33.00 (-eV)   
99+
38.90 (-eV)   
99+
Lattice Constant
389.07 pm   
25
266.49 pm   
99+
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
12.02 g/cm3   
29
7.14 g/cm3   
99+
Density When Liquid (at m.p.)
10.38 g/cm3   
17
6.57 g/cm3   
37
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
Not Available   
Elasticity properties
  
  
Shear Modulus
44.00 GPa   
17
43.00 GPa   
18
Bulk Modulus
180.00 GPa   
9
70.00 GPa   
19
Young's Modulus
121.00 GPa   
16
108.00 GPa   
19
Poisson Ratio
0.39   
5
0.25   
24
Other Mechanical Properties
Ductile, Malleable, Weldable   
NA   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
12.02   
21
6.90   
99+
Magnetic Ordering
Diamagnetic   
Diamagnetic   
Electrical Properties
  
  
Electrical Property
Conductor   
Conductor   
Resistivity
105.40 nΩ·m   
29
59.00 nΩ·m   
40
Electrical Conductivity
0.10 106/cm Ω   
22
0.17 106/cm Ω   
12
Electron Affinity
54.23 kJ/mol   
17
0.00 kJ/mol   
40
Thermal Properties
Specific Heat
0.24 J/(kg K)   
23
0.39 J/(kg K)   
14
Molar Heat Capacity
25.98 J/mol·K   
33
25.47 J/mol·K   
39
Thermal Conductivity
71.80 W/m·K   
23
116.00 W/m·K   
14
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
11.80 µm/(m·K)   
33
30.20 µm/(m·K)   
11
Enthalpy
  
  
Enthalpy of Vaporization
376.60 kJ/mol   
19
7.32 kJ/mol   
99+
Enthalpy of Fusion
16.74 kJ/mol   
18
7.32 kJ/mol   
99+
Enthalpy of Atomization
393.30 kJ/mol   
22
129.70 kJ/mol   
99+
Standard Molar Entropy
37.60 J/mol.K   
40
41.60 J/mol.K   
36
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