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Palladium Zirconium Comparison


Zirconium Palladium comparison


Periodic Table

Symbol
Pd   
Zr   

Group Number
10   
8
4   
14

Period Number
5   
5   

Block
d block   
d block   

Element Family
Transition Metal   
Transition Metal   

CAS Number
7440053   
99+
7440677   
23

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
  
  • Zirconium metal can resist to weak acids.
  • Zirconium metal reacts with oxygen and nitrogen in the atmosphere.
  

Sources
Ores of metals   
Found in Minerals, Mining, Ores of Minerals   

History
  
  

Who Discovered
William Hyde Wollaston   
Martin Heinrich Klaproth   

Discovery
In 1803   
In 1789   

Abundance
  
  

Abundance In Universe
2 * 10-7 %   
22
5 * 10-6 %   
13

Abundance In Sun
~0.0000003 %   
24
~0.000004 %   
16

Abundance In Meteorites
0.00 %   
99+
0.00 %   
17

Abundance In Earth's Crust
0.00 %   
99+
0.01 %   
14

Abundance In Oceans
Not Available   
0.00 %   
23

Abundance In Humans
Not Available   
0.00 %   
15

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.
  
  • As this metal does not absorb neutrons; It is used in nuclear power stations.
  • Its oxide is used in ultra strong ceramics. It is also used in manufacturing Crucibles.
  

Industrial Uses
Aerospace Industry, Automobile Industry, Electronic Industry   
Aerospace Industry, Ammunition Industry   

Medical Uses
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing   
NA   

Other Uses
Coinage, Bullion, Jewellery   
Alloys, Nuclear Research, Research Purposes   

Biological Properties
  
  

Toxicity
Toxic   
NA   

Present in Human Body
No   
Yes   

In Blood
Not Available   
0.01 Blood/mg dm-3   
21

In Bone
Not Available   
0.10 p.p.m.   
23

Physical Properties

Melting Point
1,554.90 °C   
22
1,852.00 °C   
15

Boiling Point
2,963.00 °C   
33
4,377.00 °C   
11

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silver   
Silvery White   

Luster
Metallic   
Lustrous   

Hardness
  
  

Mohs Hardness
4.75   
9
5.00   
8

Brinell Hardness
320.00 MPa   
33
638.00 MPa   
19

Vickers Hardness
121.00 MPa   
36
820.00 MPa   
15

Speed of Sound
3,070.00 m/s   
26
3,800.00 m/s   
20

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   
Zr   

Isotopes
  
  

Known Isotopes
38   
1
24   
15

Electronegativity
  
  

Pauling Electronegativity
2.20   
4
1.33   
30

Sanderson Electronegativity
Not Available   
0.90   
25

Allred Rochow Electronegativity
1.35   
21
1.22   
26

Allen Electronegativity
1.59   
22
1.32   
34

Electropositivity
  
  

Pauling Electropositivity
1.80   
99+
2.67   
24

Ionization Energies
  
  

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

2nd Energy Level
7,298.22 kJ/mol   
2
1,270.00 kJ/mol   
99+

3rd Energy Level
11,815.13 kJ/mol   
3
2,218.00 kJ/mol   
99+

4th Energy Level
Not Available   
3,313.00 kJ/mol   
99+

5th Energy Level
Not Available   
7,752.00 kJ/mol   
10

6th Energy Level
Not Available   
9,500.00 kJ/mol   
15

Electrochemical Equivalent
1.99 g/amp-hr   
30
0.85 g/amp-hr   
99+

Electron Work Function
5.12 eV   
3
4.05 eV   
26

Other Chemical Properties
Chemical Stability, Corrosion, Ionization, Solubility   
Anti Corrosion, Flammable, Ionization, Radioactive Isotopes, Solubility   

Atomic Properties

Atomic Number
46   
99+
40   
99+

Electron Configuration
[Kr] 4d10   
[Kr] 4d2 5s2   

Crystal Structure
Face Centered Cubic (FCC)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
FCC-Crystal-Structure-of-Palladium.jpg#100   
HCP-Crystal-Structure-of-Zirconium.jpg#100   

Atom
  
  

Number of Protons
46   
99+
40   
99+

Number of Neutrons
60   
99+
51   
99+

Number of Electrons
46   
99+
40   
99+

Radius of an Atom
  
  

Atomic Radius
137.00 pm   
40
160.00 pm   
27

Covalent Radius
139.00 pm   
99+
175.00 pm   
23

Van der Waals Radius
163.00 pm   
40
200.00 pm   
28

Atomic Weight
106.42 amu   
99+
91.22 amu   
99+

Atomic Volume
8.90 cm3/mol   
99+
14.10 cm3/mol   
36

Adjacent Atomic Numbers
  
  

Previous Element
Rhodium
  
Yttrium
  

Next Element
Silver
  
Niobium
  

Valence Electron Potential
33.00 (-eV)   
99+
80.00 (-eV)   
18

Lattice Constant
389.07 pm   
25
323.20 pm   
99+

Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   

Lattice C/A Ratio
Not Available   
1.59   
8

Mechanical Properties

Density
  
  

Density At Room Temperature
12.02 g/cm3   
29
6.52 g/cm3   
99+

Density When Liquid (at m.p.)
10.38 g/cm3   
17
5.80 g/cm3   
99+

Tensile Strength
Not Available   
330.00 MPa   
12

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
0.00 (Pa)   
21

Elasticity properties
  
  

Shear Modulus
44.00 GPa   
17
33.00 GPa   
20

Bulk Modulus
180.00 GPa   
9
91.10 GPa   
17

Young's Modulus
121.00 GPa   
16
88.00 GPa   
22

Poisson Ratio
0.39   
5
0.34   
10

Other Mechanical Properties
Ductile, Malleable, Weldable   
Ductile, Malleable   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
12.02   
21
6.51   
99+

Magnetic Ordering
Diamagnetic   
Paramagnetic   

Electrical Properties
  
  

Electrical Property
Conductor   
Conductor   

Resistivity
105.40 nΩ·m   
29
421.00 nΩ·m   
11

Electrical Conductivity
0.10 106/cm Ω   
22
0.02 106/cm Ω   
99+

Electron Affinity
54.23 kJ/mol   
17
41.10 kJ/mol   
27

Thermal Properties

Specific Heat
0.24 J/(kg K)   
23
0.27 J/(kg K)   
19

Molar Heat Capacity
25.98 J/mol·K   
33
25.36 J/mol·K   
99+

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

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
11.80 µm/(m·K)   
33
5.70 µm/(m·K)   
99+

Enthalpy
  
  

Enthalpy of Vaporization
376.60 kJ/mol   
19
581.60 kJ/mol   
9

Enthalpy of Fusion
16.74 kJ/mol   
18
20.90 kJ/mol   
11

Enthalpy of Atomization
393.30 kJ/mol   
22
598.00 kJ/mol   
10

Standard Molar Entropy
37.60 J/mol.K   
40
39.00 J/mol.K   
39

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