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Thulium vs Palladium


Palladium vs Thulium


Periodic Table

Symbol
Tm   
Pd   

Group Number
Not Available   
10   
8

Period Number
6   
5   

Block
f block   
d block   

Element Family
Lanthanide   
Transition Metal   

CAS Number
7440304   
99+
7440053   
99+

Space Group Name
P63/mmc   
Fm_ 3m   

Space Group Number
194.00   
5
225.00   
2

Facts

Interesting Facts
  • Thulium metal can resist corrosion due to dry air .
  • Only Tm-169 isotope of Thulium metal occur naturally.
  
  • 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
Found in Minerals, Mining, Ores of Minerals   
Ores of metals   

History
  
  

Who Discovered
Per Teodor Cleve   
William Hyde Wollaston   

Discovery
In 1879   
In 1803   

Abundance
  
  

Abundance In Universe
1 * 10-8 %   
30
2 * 10-7 %   
22

Abundance In Sun
~0.00000002 %   
28
~0.0000003 %   
24

Abundance In Meteorites
0.00 %   
99+
0.00 %   
99+

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

Abundance In Oceans
0.00 %   
99+
Not Available   

Uses

Uses & Benefits
  • Thulium metal produces isotopes that emits X-rays. This isotope is used in X-ray machine.
  • Thulium element is also used in Surgical equipment like laser.
  
  • 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
NA   
Aerospace Industry, Automobile Industry, Electronic Industry   

Medical Uses
NA   
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing   

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

Biological Properties
  
  

Toxicity
Unknown   
Toxic   

Present in Human Body
No   
No   

Physical Properties

Melting Point
1,545.00 °C   
23
1,554.90 °C   
22

Boiling Point
1,730.00 °C   
99+
2,963.00 °C   
33

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery Gray   
Silver   

Luster
Metallic   
Metallic   

Hardness
  
  

Mohs Hardness
Not Available   
4.75   
9

Brinell Hardness
471.00 MPa   
25
320.00 MPa   
33

Vickers Hardness
520.00 MPa   
21
121.00 MPa   
36

Speed of Sound
Not Available   
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
Tm   
Pd   

Isotopes
  
  

Known Isotopes
32   
7
38   
1

Electronegativity
  
  

Pauling Electronegativity
1.25   
35
2.20   
4

Allred Rochow Electronegativity
1.11   
29
1.35   
21

Allen Electronegativity
Not Available   
1.59   
22

Electropositivity
  
  

Pauling Electropositivity
2.75   
19
1.80   
99+

Ionization Energies
  
  

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

2nd Energy Level
1,160.00 kJ/mol   
99+
7,298.22 kJ/mol   
2

3rd Energy Level
2,285.00 kJ/mol   
99+
11,815.13 kJ/mol   
3

4th Energy Level
4,120.00 kJ/mol   
33
Not Available   

Electrochemical Equivalent
2.10 g/amp-hr   
26
1.99 g/amp-hr   
30

Electron Work Function
Not Available   
5.12 eV   
3

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

Atomic Properties

Atomic Number
69   
99+
46   
99+

Electron Configuration
[Xe] 4f13 6s2   
[Kr] 4d10   

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

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

Atom
  
  

Number of Protons
69   
99+
46   
99+

Number of Neutrons
100   
32
60   
99+

Number of Electrons
69   
99+
46   
99+

Radius of an Atom
  
  

Atomic Radius
176.00 pm   
18
137.00 pm   
40

Covalent Radius
160.00 pm   
30
139.00 pm   
99+

Van der Waals Radius
Not Available   
163.00 pm   
40

Atomic Weight
168.93 amu   
99+
106.42 amu   
99+

Atomic Volume
18.10 cm3/mol   
28
8.90 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Erbium
  
Rhodium
  

Next Element
Ytterbium
  
Silver
  

Valence Electron Potential
49.70 (-eV)   
28
33.00 (-eV)   
99+

Lattice Constant
353.75 pm   
40
389.07 pm   
25

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

Lattice C/A Ratio
1.57   
17
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
9.32 g/cm3   
40
12.02 g/cm3   
29

Density When Liquid (at m.p.)
8.56 g/cm3   
24
10.38 g/cm3   
17

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.06 (Pa)   
10
0.00 (Pa)   
27

Vapor Pressure at 2000 K
Not Available   
0.00 (Pa)   
30

Elasticity properties
  
  

Shear Modulus
30.50 GPa   
22
44.00 GPa   
17

Bulk Modulus
44.50 GPa   
26
180.00 GPa   
9

Young's Modulus
74.00 GPa   
27
121.00 GPa   
16

Poisson Ratio
0.21   
31
0.39   
5

Other Mechanical Properties
Ductile, Malleable   
Ductile, Malleable, Weldable   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
9.32   
31
12.02   
21

Magnetic Ordering
Paramagnetic   
Diamagnetic   

Electrical Properties
  
  

Electrical Property
Conductor   
Conductor   

Resistivity
676.00 nΩ·m   
5
105.40 nΩ·m   
29

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

Electron Affinity
50.00 kJ/mol   
21
54.23 kJ/mol   
17

Thermal Properties

Specific Heat
0.16 J/(kg K)   
35
0.24 J/(kg K)   
23

Molar Heat Capacity
27.03 J/mol·K   
22
25.98 J/mol·K   
33

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

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
13.30 µm/(m·K)   
29
11.80 µm/(m·K)   
33

Enthalpy
  
  

Enthalpy of Vaporization
191.00 kJ/mol   
99+
376.60 kJ/mol   
19

Enthalpy of Fusion
16.80 kJ/mol   
17
16.74 kJ/mol   
18

Enthalpy of Atomization
247.00 kJ/mol   
99+
393.30 kJ/mol   
22

Standard Molar Entropy
74.00 J/mol.K   
9
37.60 J/mol.K   
40

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