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Erbium vs Bismuth

Erbium
Bismuth
Bismuth vs Erbium


Periodic Table
Symbol
Er  
Bi  
Group Number
3  
15
15  
3
Period Number
6  
6  
Block
f block  
p block  
Element Family
Lanthanide  
Post-​Transition  
CAS Number
7440520  
35
7440699  
22
Space Group Name
P63/mmc  
C12/m1  
Space Group Number
194.00  
7
12.00  
15
Facts
Interesting Facts
  • Erbium metal is used as alloyed with Vanadium to make it softer.
  • Recent studies shows that it is helpful for metabolism.
  
  • 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.
  
Sources
Mining  
Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
Carl Gustaf Mosander  
Claude François Geoffroy  
Discovery
In 1842  
In 1753  
Abundance
  
  
Abundance In Universe
0.00 %  
23
0.00 %  
26
Abundance In Sun
0.00 %  
26
0.00 %  
14
Abundance In Meteorites
0.00 %  
36
0.00 %  
99+
Abundance In Earth's Crust
0.00 %  
32
0.00 %  
99+
Abundance In Oceans
0.00 %  
36
0.00 %  
24
Abundance In Humans
0.00 %  
24
0.00 %  
24
Uses
Uses & Benefits
  • It has a tendency to get tarnished in the open air, but when alloyed with elements like erbium, vanadium, its hardness levels decreases.
  • Its compounds like Erbium oxide is used in safety glasses of welders and metal workers.
  
  • 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.
  
Industrial Uses
Chemical Industry  
Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry  
Medical Uses
-  
Pharmaceutical Industry  
Other Uses
Alloys  
Alloys  
Biological Properties
  
  
Toxicity
Mildly Toxic  
Low Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
40
0.02 Blood/mg dm-3  
20
In Bone
0.00 p.p.m.  
99+
0.20 p.p.m.  
27
Physical
Melting Point
1,522.00 °C  
28
271.30 °C  
99+
Boiling Point
2,510.00 °C  
99+
1,560.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
Silver  
Luster
Lustrous  
Metallic  
Hardness
  
  
Mohs Hardness
1.00  
22
2.25  
16
Brinell Hardness
814.00 MPa  
12
70.00 MPa  
99+
Vickers Hardness
589.00 MPa  
30
30.00 MPa  
99+
Speed of Sound
2,830.00 m/s  
99+
1,790.00 m/s  
99+
Optical Properties
  
  
Refractive Index
1.76  
24
2.50  
5
Reflectivity
36.00 %  
33
70.00 %  
13
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Er  
Bi  
Isotopes
  
  
Known Isotopes
31  
8
33  
6
Electronegativity
  
  
Pauling Electronegativity
1.24  
37
2.02  
7
Sanderson Electronegativity
1.24  
29
2.34  
3
Allred Rochow Electronegativity
1.11  
30
1.67  
7
Mulliken-Jaffe Electronegativity
1.24  
36
2.15  
8
Allen Electronegativity
1.24  
99+
2.01  
5
Electropositivity
  
  
Pauling Electropositivity
2.76  
18
1.98  
99+
Ionization Energies
  
  
1st Energy Level
589.30 kJ/mol  
99+
703.00 kJ/mol  
35
2nd Energy Level
1,150.00 kJ/mol  
99+
1,610.00 kJ/mol  
34
3rd Energy Level
2,194.00 kJ/mol  
99+
2,466.00 kJ/mol  
99+
4th Energy Level
4,120.00 kJ/mol  
99+
4,370.00 kJ/mol  
38
5th Energy Level
5,897.00 kJ/mol  
99+
5,400.00 kJ/mol  
99+
6th Energy Level
5,897.00 kJ/mol  
99+
8,520.00 kJ/mol  
29
7th Energy level
5,890.00 kJ/mol  
99+
7,030.00 kJ/mol  
99+
8th Energy Level
5,890.00 kJ/mol  
99+
7,030.00 kJ/mol  
37
9th Energy Level
4,240.00 kJ/mol  
99+
7,030.00 kJ/mol  
34
10th Energy Level
5,890.00 kJ/mol  
99+
7,030.00 kJ/mol  
38
11th Energy Level
5,890.00 kJ/mol  
99+
7,030.00 kJ/mol  
36
12th Energy Level
5,890.00 kJ/mol  
99+
7,030.00 kJ/mol  
99+
13th Energy Level
5,890.00 kJ/mol  
99+
7,030.00 kJ/mol  
32
14th Energy Level
5,890.00 kJ/mol  
37
7,030.00 kJ/mol  
22
15th Energy Level
58,900.00 kJ/mol  
99+
70,300.00 kJ/mol  
28
16th Energy Level
58,900.00 kJ/mol  
38
70,300.00 kJ/mol  
23
17th Energy Level
589.30 kJ/mol  
99+
703.00 kJ/mol  
99+
18th Energy Level
5,890.00 kJ/mol  
99+
7,030.00 kJ/mol  
34
19th Energy Level
589.30 kJ/mol  
99+
703.00 kJ/mol  
40
20th Energy Level
589.00 kJ/mol  
99+
703.00 kJ/mol  
34
21st Energy Level
5,897.00 kJ/mol  
19
7,030.00 kJ/mol  
12
22nd Energy Level
589.00 kJ/mol  
99+
703.00 kJ/mol  
28
23rd Energy Level
589.30 kJ/mol  
99+
7,030.00 kJ/mol  
10
24th Energy Level
589.30 kJ/mol  
99+
703.00 kJ/mol  
27
25th Energy Level
589.00 kJ/mol  
99+
703.00 kJ/mol  
29
26th Energy Level
589.30 kJ/mol  
99+
703.00 kJ/mol  
28
27th Energy Level
589.30 kJ/mol  
99+
703.00 kJ/mol  
29
28th Energy Level
589.30 kJ/mol  
99+
703.00 kJ/mol  
34
29th Energy Level
589.30 kJ/mol  
99+
703.00 kJ/mol  
35
30th Energy Level
589.70 kJ/mol  
99+
703.00 kJ/mol  
29
Electrochemical Equivalent
2.08 g/amp-hr  
32
2.60 g/amp-hr  
23
Electron Work Function
5.93 eV  
2
4.22 eV  
29
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility  
Ionization, Radioactive Isotopes, Solubility  
Atomic
Atomic Number
68  
99+
83  
33
Electron Configuration
[Xe] 4f12 6s2  
[Xe] 4f14 5d10 6s2 6p3  
Crystal Structure
Hexagonal Close Packed (HCP)  
Rhombohedral (RHO)  
Crystal Lattice
HCP-Crystal-Structure-of-Erbium.jpg#100  
RHO-Crystal-Structure-of-Bismuth.jpg#100  
Atom
  
  
Number of Protons
68  
99+
83  
33
Number of Neutrons
99  
34
126  
19
Number of Electrons
68  
99+
83  
33
Radius of an Atom
  
  
Atomic Radius
176.00 pm  
20
156.00 pm  
31
Covalent Radius
189.00 pm  
19
148.00 pm  
38
Van der Waals Radius
0.00 pm  
99+
207.00 pm  
33
Atomic Weight
167.26 amu  
99+
208.98 amu  
29
Atomic Volume
18.40 cm3/mol  
37
21.30 cm3/mol  
23
Adjacent Atomic Numbers
  
  
Previous Element
Holmium
  
Lead
  
Next Element
Thulium
  
Polonium
  
Valence Electron Potential
49.00 (-eV)  
30
41.90 (-eV)  
99+
Lattice Constant
355.88 pm  
99+
667.40 pm  
2
Lattice Angles
π/2, π/2, 2 π/3  
-  
Lattice C/A Ratio
1.57  
40
1.86  
4
Mechanical
Density
  
  
Density At Room Temperature
9.07 g/cm3  
99+
9.78 g/cm3  
99+
Density When Liquid (at m.p.)
8.86 g/cm3  
99+
10.05 g/cm3  
99+
Tensile Strength
350.00 MPa  
12
32.00 MPa  
99+
Viscosity
0.00  
25
0.00  
29
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
21
0.00 (Pa)  
22
Vapor Pressure at 2000 K
0.00 (Pa)  
30
0.00 (Pa)  
24
Elasticity properties
  
  
Shear Modulus
28.30 GPa  
31
12.00 GPa  
99+
Bulk Modulus
44.40 GPa  
31
31.00 GPa  
99+
Young's Modulus
69.90 GPa  
31
32.00 GPa  
99+
Poisson Ratio
0.24  
28
0.33  
11
Other Mechanical Properties
Malleable  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
9.07  
99+
9.79  
99+
Magnetic Ordering
Paramagnetic  
Diamagnetic  
Permeability
0.00 H/m  
17
0.00 H/m  
20
Susceptibility
0.00  
11
0.00  
36
Electrical Properties
  
  
Electrical Property
Conductor  
Semiconductor  
Resistivity
0.86 nΩ·m  
99+
1.29 nΩ·m  
99+
Electrical Conductivity
0.01 106/cm Ω  
99+
0.01 106/cm Ω  
99+
Electron Affinity
50.00 kJ/mol  
26
91.20 kJ/mol  
13
Thermal
Specific Heat
0.17 J/(kg K)  
35
0.12 J/(kg K)  
99+
Molar Heat Capacity
28.12 J/mol·K  
14
25.52 J/mol·K  
99+
Thermal Conductivity
14.50 W/m·K  
99+
7.97 W/m·K  
99+
Critical Temperature
1,802.00 K  
30
544.00 K  
99+
Thermal Expansion
12.20 µm/(m·K)  
99+
13.40 µm/(m·K)  
34
Enthalpy
  
  
Enthalpy of Vaporization
261.00 kJ/mol  
99+
151.00 kJ/mol  
99+
Enthalpy of Fusion
17.20 kJ/mol  
15
10.90 kJ/mol  
39
Enthalpy of Atomization
314.00 kJ/mol  
99+
207.10 kJ/mol  
99+
Standard Molar Entropy
73.10 J/mol.K  
11
56.70 J/mol.K  
32
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