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Thulium vs Uranium


Uranium vs Thulium


Periodic Table

Symbol
Tm   
U   

Group Number
Not Available   
0   
18

Period Number
6   
7   

Block
f block   
f block   

Element Family
Lanthanide   
Actinide   

CAS Number
7440304   
99+
7440611   
28

Space Group Name
P63/mmc   
Cmcm   

Space Group Number
194.00   
5
63.00   
10

Facts

Interesting Facts
  • Thulium metal can resist corrosion due to dry air .
  • Only Tm-169 isotope of Thulium metal occur naturally.
  
  • Major mining countries of Uranium include Russia, Australia, Namibia, Canada and Niger and total 33% Uranium are mine in Kazakhstan.
  

Sources
Found in Minerals, Mining, Ores of Minerals   
Earth's crust, Mining, Ores of Minerals   

History
  
  

Who Discovered
Per Teodor Cleve   
Not Available   

Discovery
In 1879   
In 1789   

Abundance
  
  

Abundance In Universe
1 * 10-8 %   
30
2 * 10-8 %   
29

Abundance In Sun
~0.00000002 %   
28
~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
0.00 %   
99+
0.00 %   
11

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.
  
  • 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
NA   
Ammunition Industry, Chemical Industry   

Medical Uses
NA   
NA   

Other Uses
Alloys, Nuclear Research, Research Purposes   
Alloys, Jewellery, Nuclear Reactor's Fuel, Sculptures, Statues   

Biological Properties
  
  

Toxicity
Unknown   
Toxic   

Present in Human Body
No   
No   

Physical Properties

Melting Point
1,545.00 °C   
23
1,132.00 °C   
39

Boiling Point
1,730.00 °C   
99+
3,818.00 °C   
16

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery Gray   
Silvery Gray   

Luster
Metallic   
Metallic   

Hardness
  
  

Mohs Hardness
Not Available   
6.00   
6

Brinell Hardness
471.00 MPa   
25
2,350.00 MPa   
2

Vickers Hardness
520.00 MPa   
21
1,960.00 MPa   
2

Speed of Sound
Not Available   
3,155.00 m/s   
25

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   
U   

Isotopes
  
  

Known Isotopes
32   
7
25   
14

Electronegativity
  
  

Pauling Electronegativity
1.25   
35
1.38   
28

Allred Rochow Electronegativity
1.11   
29
1.22   
26

Electropositivity
  
  

Pauling Electropositivity
2.75   
19
2.62   
26

Ionization Energies
  
  

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

2nd Energy Level
1,160.00 kJ/mol   
99+
1,420.00 kJ/mol   
99+

3rd Energy Level
2,285.00 kJ/mol   
99+
1,900.00 kJ/mol   
99+

4th Energy Level
4,120.00 kJ/mol   
33
3,145.00 kJ/mol   
99+

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

Electron Work Function
Not Available   
3.63 eV   
30

Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes, Radioactivity   

Atomic Properties

Atomic Number
69   
99+
92   
26

Electron Configuration
[Xe] 4f13 6s2   
[Rn] 5f3 6d1 7s2   

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

Crystal Lattice
HCP-Crystal-Structure-of-Thulium.jpg#100   
ORTH-Crystal-Structure-of-Uranium.jpg#100   

Atom
  
  

Number of Protons
69   
99+
92   
26

Number of Neutrons
100   
32
146   
13

Number of Electrons
69   
99+
92   
26

Radius of an Atom
  
  

Atomic Radius
176.00 pm   
18
156.00 pm   
29

Covalent Radius
160.00 pm   
30
196.00 pm   
14

Van der Waals Radius
Not Available   
186.00 pm   
33

Atomic Weight
168.93 amu   
99+
238.03 amu   
21

Atomic Volume
18.10 cm3/mol   
28
12.59 cm3/mol   
40

Adjacent Atomic Numbers
  
  

Previous Element
Erbium
  

Next Element
Ytterbium
  
Neptunium
  

Valence Electron Potential
49.70 (-eV)   
28
170.00 (-eV)   
4

Lattice Constant
353.75 pm   
40
295.08 pm   
99+

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
19.10 g/cm3   
17

Density When Liquid (at m.p.)
8.56 g/cm3   
24
17.30 g/cm3   
7

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   
0.01 (Pa)   
20

Elasticity properties
  
  

Shear Modulus
30.50 GPa   
22
111.00 GPa   
10

Bulk Modulus
44.50 GPa   
26
100.00 GPa   
16

Young's Modulus
74.00 GPa   
27
208.00 GPa   
10

Poisson Ratio
0.21   
31
0.23   
30

Other Mechanical Properties
Ductile, Malleable   
Ductile, Malleable   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
9.32   
31
18.80   
10

Magnetic Ordering
Paramagnetic   
Paramagnetic   

Electrical Properties
  
  

Electrical Property
Conductor   
Poor Conductor   

Resistivity
676.00 nΩ·m   
5
0.28 nΩ·m   
99+

Electrical Conductivity
0.02 106/cm Ω   
99+
0.04 106/cm Ω   
37

Electron Affinity
50.00 kJ/mol   
21
Not Available   

Thermal Properties

Specific Heat
0.16 J/(kg K)   
35
0.12 J/(kg K)   
40

Molar Heat Capacity
27.03 J/mol·K   
22
27.67 J/mol·K   
15

Thermal Conductivity
16.90 W/m·K   
99+
27.50 W/m·K   
40

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
13.30 µm/(m·K)   
29
13.90 µm/(m·K)   
27

Enthalpy
  
  

Enthalpy of Vaporization
191.00 kJ/mol   
99+
477.00 kJ/mol   
13

Enthalpy of Fusion
16.80 kJ/mol   
17
15.48 kJ/mol   
19

Enthalpy of Atomization
247.00 kJ/mol   
99+
489.50 kJ/mol   
14

Standard Molar Entropy
74.00 J/mol.K   
9
50.20 J/mol.K   
31

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