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Bismuth Thulium Comparison


Thulium Bismuth comparison


Periodic Table

Symbol
Bi  
Tm  

Group Number
15  
3
3  
15

Period Number
6  
6  

Block
p block  
f block  

Element Family
Post-​Transition  
Lanthanide  

CAS Number
7440699  
22
7440304  
99+

Space Group Name
C12/m1  
P63/mmc  

Space Group Number
12.00  
15
194.00  
7

Facts

Interesting Facts
  • Bismuth metal is soluble and reacts with concentrated nitric acid.
  • It oxides are used as a yellow pigment in paint. Bismuth chloride oxide BiClO gives a pearly texture to cosmetics.
  
  • Thulium metal can resist corrosion due to dry air .
  • Only Tm-169 isotope of Thulium metal occur naturally.
  

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

History
  
  

Who Discovered
Claude François Geoffroy  
Per Teodor Cleve  

Discovery
In 1753  
In 1879  

Abundance
  
  

Abundance In Universe
0.00 %  
26
0.00 %  
31

Abundance In Sun
0.00 %  
14
0.00 %  
28

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 %  
24
0.00 %  
99+

Abundance In Humans
0.00 %  
24
0.00 %  
24

Uses

Uses & Benefits
  • Tin and bismuth alloys have a very low melting point and hence it is used in fire detector and the fire extinguishers. It also used in electric solders and fuses.
  
  • 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.
  

Industrial Uses
Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry  
-  

Medical Uses
Pharmaceutical Industry  
-  

Other Uses
Alloys  
Alloys, Nuclear Research, Research Purposes  

Biological Properties
  
  

Toxicity
Low Toxic  
-  

Present in Human Body
Yes  
No  

In Blood
0.02 Blood/mg dm-3  
20
0.00 Blood/mg dm-3  
37

In Bone
0.20 p.p.m.  
27
0.00 p.p.m.  
99+

Physical

Melting Point
271.30 °C  
99+
1,545.00 °C  
23

Boiling Point
1,560.00 °C  
99+
1,730.00 °C  
99+

Appearance
  
  

Physical State
Solid  
Solid  

Color
Silver  
Silvery Gray  

Luster
Metallic  
Metallic  

Hardness
  
  

Mohs Hardness
2.25  
16
2.25  
16

Brinell Hardness
70.00 MPa  
99+
471.00 MPa  
30

Vickers Hardness
30.00 MPa  
99+
520.00 MPa  
33

Speed of Sound
1,790.00 m/s  
99+
2,760.00 m/s  
99+

Optical Properties
  
  

Refractive Index
2.50  
5
1.60  
33

Reflectivity
70.00 %  
13
35.00 %  
34

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
Bi  
Tm  

Isotopes
  
  

Known Isotopes
33  
6
32  
7

Electronegativity
  
  

Pauling Electronegativity
2.02  
7
1.25  
36

Sanderson Electronegativity
2.34  
3
1.25  
28

Allred Rochow Electronegativity
1.67  
7
1.11  
30

Mulliken-Jaffe Electronegativity
2.15  
8
1.25  
35

Allen Electronegativity
2.01  
5
1.25  
99+

Electropositivity
  
  

Pauling Electropositivity
1.98  
99+
2.75  
19

Ionization Energies
  
  

1st Energy Level
703.00 kJ/mol  
35
596.70 kJ/mol  
99+

2nd Energy Level
1,610.00 kJ/mol  
34
1,160.00 kJ/mol  
99+

3rd Energy Level
2,466.00 kJ/mol  
99+
2,285.00 kJ/mol  
99+

4th Energy Level
4,370.00 kJ/mol  
38
4,120.00 kJ/mol  
99+

5th Energy Level
5,400.00 kJ/mol  
99+
5,960.00 kJ/mol  
99+

6th Energy Level
8,520.00 kJ/mol  
29
5,960.00 kJ/mol  
99+

7th Energy level
7,030.00 kJ/mol  
99+
5,960.00 kJ/mol  
99+

8th Energy Level
7,030.00 kJ/mol  
37
5,960.00 kJ/mol  
99+

9th Energy Level
7,030.00 kJ/mol  
34
5,960.00 kJ/mol  
99+

10th Energy Level
7,030.00 kJ/mol  
38
5,960.00 kJ/mol  
99+

11th Energy Level
7,030.00 kJ/mol  
36
5,960.00 kJ/mol  
99+

12th Energy Level
7,030.00 kJ/mol  
99+
5,960.00 kJ/mol  
99+

13th Energy Level
7,030.00 kJ/mol  
32
5,960.00 kJ/mol  
99+

14th Energy Level
7,030.00 kJ/mol  
22
5,960.00 kJ/mol  
35

15th Energy Level
70,300.00 kJ/mol  
28
59,600.00 kJ/mol  
99+

16th Energy Level
70,300.00 kJ/mol  
23
59,600.00 kJ/mol  
36

17th Energy Level
703.00 kJ/mol  
99+
596.70 kJ/mol  
99+

18th Energy Level
7,030.00 kJ/mol  
34
5,960.00 kJ/mol  
99+

19th Energy Level
703.00 kJ/mol  
40
596.00 kJ/mol  
99+

20th Energy Level
703.00 kJ/mol  
34
596.00 kJ/mol  
99+

21st Energy Level
7,030.00 kJ/mol  
12
596.70 kJ/mol  
99+

22nd Energy Level
703.00 kJ/mol  
28
596.00 kJ/mol  
99+

23rd Energy Level
7,030.00 kJ/mol  
10
596.70 kJ/mol  
99+

24th Energy Level
703.00 kJ/mol  
27
596.00 kJ/mol  
99+

25th Energy Level
703.00 kJ/mol  
29
596.00 kJ/mol  
99+

26th Energy Level
703.00 kJ/mol  
28
596.70 kJ/mol  
99+

27th Energy Level
703.00 kJ/mol  
29
596.70 kJ/mol  
99+

28th Energy Level
703.00 kJ/mol  
34
596.70 kJ/mol  
99+

29th Energy Level
703.00 kJ/mol  
35
596.00 kJ/mol  
99+

30th Energy Level
703.00 kJ/mol  
29
596.70 kJ/mol  
99+

Electrochemical Equivalent
2.60 g/amp-hr  
23
2.10 g/amp-hr  
30

Electron Work Function
4.22 eV  
29
2.40 eV  
99+

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

Atomic

Atomic Number
83  
33
69  
99+

Electron Configuration
[Xe] 4f14 5d10 6s2 6p3  
[Xe] 4f13 6s2  

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

Crystal Lattice
RHO-Crystal-Structure-of-Bismuth.jpg#100  
HCP-Crystal-Structure-of-Thulium.jpg#100  

Atom
  
  

Number of Protons
83  
33
69  
99+

Number of Neutrons
126  
19
100  
33

Number of Electrons
83  
33
69  
99+

Radius of an Atom
  
  

Atomic Radius
156.00 pm  
31
176.00 pm  
20

Covalent Radius
148.00 pm  
38
160.00 pm  
32

Van der Waals Radius
207.00 pm  
33
227.00 pm  
26

Atomic Weight
208.98 amu  
29
168.93 amu  
99+

Atomic Volume
21.30 cm3/mol  
23
18.10 cm3/mol  
40

Adjacent Atomic Numbers
  
  

Previous Element
Lead
  
Erbium
  

Next Element
Polonium
  
Ytterbium
  

Valence Electron Potential
41.90 (-eV)  
99+
49.70 (-eV)  
29

Lattice Constant
667.40 pm  
2
353.75 pm  
99+

Lattice Angles
-  
π/2, π/2, 2 π/3  

Lattice C/A Ratio
1.86  
4
1.57  
40

Mechanical

Density
  
  

Density At Room Temperature
9.78 g/cm3  
99+
9.32 g/cm3  
99+

Density When Liquid (at m.p.)
10.05 g/cm3  
99+
8.56 g/cm3  
99+

Tensile Strength
32.00 MPa  
99+
69.00 MPa  
32

Viscosity
0.00  
29
0.00  
19

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)  
22
0.06 (Pa)  
10

Vapor Pressure at 2000 K
0.00 (Pa)  
24
0.00 (Pa)  
37

Elasticity properties
  
  

Shear Modulus
12.00 GPa  
99+
30.50 GPa  
26

Bulk Modulus
31.00 GPa  
99+
44.50 GPa  
30

Young's Modulus
32.00 GPa  
99+
74.00 GPa  
29

Poisson Ratio
0.33  
11
0.21  
32

Other Mechanical Properties
-  
Ductile, Malleable  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
9.79  
99+
9.32  
99+

Magnetic Ordering
Diamagnetic  
Paramagnetic  

Permeability
0.00 H/m  
20
0.00 H/m  
17

Susceptibility
0.00  
36
0.00  
24

Electrical Properties
  
  

Electrical Property
Semiconductor  
Conductor  

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

Electrical Conductivity
0.01 106/cm Ω  
99+
0.02 106/cm Ω  
99+

Electron Affinity
91.20 kJ/mol  
13
50.00 kJ/mol  
26

Thermal

Specific Heat
0.12 J/(kg K)  
99+
0.16 J/(kg K)  
36

Molar Heat Capacity
25.52 J/mol·K  
99+
27.03 J/mol·K  
28

Thermal Conductivity
7.97 W/m·K  
99+
16.90 W/m·K  
99+

Critical Temperature
544.00 K  
99+
1,818.00 K  
27

Thermal Expansion
13.40 µm/(m·K)  
34
13.30 µm/(m·K)  
35

Enthalpy
  
  

Enthalpy of Vaporization
151.00 kJ/mol  
99+
191.00 kJ/mol  
99+

Enthalpy of Fusion
10.90 kJ/mol  
39
16.80 kJ/mol  
17

Enthalpy of Atomization
207.10 kJ/mol  
99+
247.00 kJ/mol  
99+

Standard Molar Entropy
56.70 J/mol.K  
32
74.00 J/mol.K  
9

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