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Thulium vs Ruthenium


Ruthenium vs Thulium


Periodic Table

Symbol
Tm   
Ru   

Group Number
Not Available   
8   
10

Period Number
6   
5   

Block
f block   
d block   

Element Family
Lanthanide   
Transition Metal   

CAS Number
7440304   
99+
7440188   
99+

Space Group Name
P63/mmc   
P63/mmc   

Space Group Number
194.00   
5
194.00   
5

Facts

Interesting Facts
  • Thulium metal can resist corrosion due to dry air .
  • Only Tm-169 isotope of Thulium metal occur naturally.
  
  • Ruthenium element has been extracted from used nuclear fuel.
  • Ruthenium metal also produces as a by-product of the Nickel mining.
  

Sources
Found in Minerals, Mining, Ores of Minerals   
By-product of Nickel Refining, Found in Minerals, Mining   

History
  
  

Who Discovered
Per Teodor Cleve   
Karl Ernst Claus   

Discovery
In 1879   
In 1844   

Abundance
  
  

Abundance In Universe
1 * 10-8 %   
30
4 * 10-7 %   
20

Abundance In Sun
~0.00000002 %   
28
~0.0000005 %   
22

Abundance In Meteorites
0.00 %   
99+
0.00 %   
26

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

Abundance In Oceans
0.00 %   
99+
0.00 %   
38

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.
  
  • It is used for producing chip resistors and contact.
  • Ruthenium oxide is used to coat the anodes cells for chlorine production in chemical industry. It also works as catalysts for ammonia and acetic acid reaction.
  

Industrial Uses
NA   
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry   

Medical Uses
NA   
Medical Research   

Other Uses
Alloys, Nuclear Research, Research Purposes   
Alloys   

Biological Properties
  
  

Toxicity
Unknown   
Low Toxic   

Present in Human Body
No   
No   

Physical Properties

Melting Point
1,545.00 °C   
23
2,250.00 °C   
8

Boiling Point
1,730.00 °C   
99+
3,900.00 °C   
14

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery Gray   
Silvery White   

Luster
Metallic   
Metallic   

Hardness
  
  

Mohs Hardness
Not Available   
6.50   
5

Brinell Hardness
471.00 MPa   
25
2,160.00 MPa   
3

Vickers Hardness
520.00 MPa   
21
Not Available   

Speed of Sound
Not Available   
5,970.00 m/s   
4

Optical Properties
  
  

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   
Ru   

Isotopes
  
  

Known Isotopes
32   
7
26   
13

Electronegativity
  
  

Pauling Electronegativity
1.25   
35
2.20   
4

Allred Rochow Electronegativity
1.11   
29
1.42   
18

Allen Electronegativity
Not Available   
1.54   
25

Electropositivity
  
  

Pauling Electropositivity
2.75   
19
1.80   
99+

Ionization Energies
  
  

1st Energy Level
596.70 kJ/mol   
99+
710.20 kJ/mol   
32

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

3rd Energy Level
2,285.00 kJ/mol   
99+
2,747.00 kJ/mol   
37

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

Electrochemical Equivalent
2.10 g/amp-hr   
26
1.26 g/amp-hr   
99+

Electron Work Function
Not Available   
4.71 eV   
9

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

Atomic Properties

Atomic Number
69   
99+
44   
99+

Electron Configuration
[Xe] 4f13 6s2   
[Kr] 4d7 5s1   

Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
HCP-Crystal-Structure-of-Thulium.jpg#100   
rystal-Structure-of-Ruthenium.jpg#100   

Atom
  
  

Number of Protons
69   
99+
44   
99+

Number of Neutrons
100   
32
57   
99+

Number of Electrons
69   
99+
44   
99+

Radius of an Atom
  
  

Atomic Radius
176.00 pm   
18
134.00 pm   
99+

Covalent Radius
160.00 pm   
30
146.00 pm   
38

Van der Waals Radius
Not Available   
200.00 pm   
28

Atomic Weight
168.93 amu   
99+
101.07 amu   
99+

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

Adjacent Atomic Numbers
  
  

Previous Element
Erbium
  
Technetium
  

Next Element
Ytterbium
  
Rhodium
  

Valence Electron Potential
49.70 (-eV)   
28
64.00 (-eV)   
22

Lattice Constant
353.75 pm   
40
270.59 pm   
99+

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

Lattice C/A Ratio
1.57   
17
1.58   
11

Mechanical Properties

Density
  
  

Density At Room Temperature
9.32 g/cm3   
40
12.45 g/cm3   
27

Density When Liquid (at m.p.)
8.56 g/cm3   
24
10.65 g/cm3   
16

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.06 (Pa)   
10
Not Available   

Vapor Pressure at 2000 K
Not Available   
0.00 (Pa)   
23

Elasticity properties
  
  

Shear Modulus
30.50 GPa   
22
173.00 GPa   
4

Bulk Modulus
44.50 GPa   
26
220.00 GPa   
7

Young's Modulus
74.00 GPa   
27
447.00 GPa   
3

Poisson Ratio
0.21   
31
0.30   
14

Other Mechanical Properties
Ductile, Malleable   
Ductile, Malleable   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
9.32   
31
12.45   
19

Magnetic Ordering
Paramagnetic   
Paramagnetic   

Electrical Properties
  
  

Electrical Property
Conductor   
Conductor   

Resistivity
676.00 nΩ·m   
5
71.00 nΩ·m   
38

Electrical Conductivity
0.02 106/cm Ω   
99+
0.14 106/cm Ω   
16

Electron Affinity
50.00 kJ/mol   
21
101.30 kJ/mol   
10

Thermal Properties

Specific Heat
0.16 J/(kg K)   
35
0.24 J/(kg K)   
24

Molar Heat Capacity
27.03 J/mol·K   
22
24.06 J/mol·K   
99+

Thermal Conductivity
16.90 W/m·K   
99+
117.00 W/m·K   
13

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
13.30 µm/(m·K)   
29
6.40 µm/(m·K)   
99+

Enthalpy
  
  

Enthalpy of Vaporization
191.00 kJ/mol   
99+
567.80 kJ/mol   
10

Enthalpy of Fusion
16.80 kJ/mol   
17
25.50 kJ/mol   
7

Enthalpy of Atomization
247.00 kJ/mol   
99+
603.00 kJ/mol   
9

Standard Molar Entropy
74.00 J/mol.K   
9
28.50 J/mol.K   
99+

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