Bismuth vs Dysprosium
Periodic Table
Symbol
Bi
Dy
Group Number
15
3
Not Available
Period Number
6
6
Block
p block
f block
Element Family
Post-Transition
Lanthanide
CAS Number
7440699
22
7429916
99+
Space Group Name
C12/m1
P63/mmc
Space Group Number
12.00
12
194.00
5
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.
- Dysprosium acts stable in air at room temperature.
- Dysprosium behaves very much like paramagnetic metal.
Sources
Found in Minerals, Mining, Ores of Minerals
Found in Minerals, Mining, Ores of Minerals
History
Who Discovered
Claude François Geoffroy
Lecoq de Boisbaudran
Discovery
In 1753
In 1886
Abundance
Abundance In Universe
7 * 10-8 %
25
2 * 10-7 %
22
Abundance In Sun
~0.000006 %
14
~0.0000002 %
25
Abundance In Meteorites
0.00 %
99+
0.00 %
33
Abundance In Earth's Crust
0.00 %
99+
0.00 %
28
Abundance In Oceans
0.00 %
24
0.00 %
35
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.
- Dysprosium metal is highly reactive due to which it pure form is not as usual as its alloy.
- Thi metals alloy is used in magnate as it is resistance to high temperature.
Industrial Uses
Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
NA
Medical Uses
Pharmaceutical Industry
NA
Other Uses
Alloys
Alloys, Nuclear Research
Biological Properties
Toxicity
Low Toxic
Mildly Toxic
Present in Human Body
Yes
No
In Blood
0.02 Blood/mg dm-3
20
Not Available
In Bone
0.20 p.p.m.
22
Not Available
Physical Properties
Melting Point
271.30 °C
99+
1,407.00 °C
32
Boiling Point
1,560.00 °C
99+
2,562.00 °C
99+
Appearance
Physical State
Solid
Solid
Color
Silver
Silvery White
Luster
Metallic
Metallic
Hardness
Mohs Hardness
2.25
15
Not Available
Brinell Hardness
70.00 MPa
99+
500.00 MPa
23
Vickers Hardness
Not Available
540.00 MPa
20
Speed of Sound
1,790.00 m/s
99+
2,710.00 m/s
33
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
Bi
Dy
Isotopes
Known Isotopes
33
6
29
10
Electronegativity
Pauling Electronegativity
2.02
6
1.22
38
Sanderson Electronegativity
2.34
3
Not Available
Allred Rochow Electronegativity
1.67
6
1.10
30
Mulliken-Jaffe Electronegativity
2.15
4
Not Available
Allen Electronegativity
2.01
4
Not Available
Electropositivity
Pauling Electropositivity
1.98
99+
2.78
16
Ionization Energies
1st Energy Level
703.00 kJ/mol
35
573.00 kJ/mol
99+
2nd Energy Level
1,610.00 kJ/mol
33
1,130.00 kJ/mol
99+
3rd Energy Level
2,466.00 kJ/mol
99+
2,200.00 kJ/mol
99+
4th Energy Level
4,370.00 kJ/mol
28
3,990.00 kJ/mol
37
5th Energy Level
5,400.00 kJ/mol
30
Not Available
6th Energy Level
8,520.00 kJ/mol
19
Not Available
Electrochemical Equivalent
2.60 g/amp-hr
19
2.02 g/amp-hr
29
Electron Work Function
4.22 eV
22
Not Available
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
Atomic Properties
Atomic Number
83
33
66
99+
Electron Configuration
[Xe] 4f14 5d10 6s2 6p3
[Xe] 4f9 6s2
Crystal Structure
Rhombohedral (RHO)
Hexagonal Close Packed (HCP)
Crystal Lattice
RHO-Crystal-Structure-of-Bismuth.jpg#100
HCP-Crystal-Structure-of-Dysprosium.jpg#100
Atom
Number of Protons
83
33
66
99+
Number of Neutrons
126
18
96
35
Number of Electrons
83
33
66
99+
Radius of an Atom
Atomic Radius
156.00 pm
29
178.00 pm
16
Covalent Radius
148.00 pm
36
192.00 pm
17
Van der Waals Radius
207.00 pm
26
229.00 pm
20
Atomic Weight
208.98 amu
29
162.50 amu
99+
Atomic Volume
21.30 cm3/mol
14
19.00 cm3/mol
23
Adjacent Atomic Numbers
Valence Electron Potential
41.90 (-eV)
99+
47.40 (-eV)
32
Lattice Constant
667.40 pm
2
359.30 pm
37
Lattice Angles
NA
π/2, π/2, 2 π/3
Lattice C/A Ratio
Not Available
1.57
15
Mechanical Properties
Density
Density At Room Temperature
9.78 g/cm3
39
8.54 g/cm3
99+
Density When Liquid (at m.p.)
10.05 g/cm3
18
8.37 g/cm3
25
Tensile Strength
Not Available
120.00 MPa
15
Viscosity
Not Available
Not Available
Vapor Pressure
Elasticity properties
Shear Modulus
12.00 GPa
99+
24.70 GPa
31
Bulk Modulus
31.00 GPa
38
40.50 GPa
31
Young's Modulus
32.00 GPa
99+
61.40 GPa
33
Poisson Ratio
0.33
11
0.25
25
Other Mechanical Properties
NA
Sectile
Magnetic Properties
Magnetic Characteristics
Specific Gravity
9.79
30
8.55
38
Magnetic Ordering
Diamagnetic
Paramagnetic
Permeability
0.00 H/m
6
Not Available
Susceptibility
0.00
6
Not Available
Electrical Properties
Electrical Property
Semiconductor
Conductor
Resistivity
1.29 nΩ·m
99+
926.00 nΩ·m
2
Electrical Conductivity
0.01 106/cm Ω
99+
0.01 106/cm Ω
99+
Electron Affinity
91.20 kJ/mol
11
50.00 kJ/mol
21
Thermal Properties
Specific Heat
0.12 J/(kg K)
40
0.17 J/(kg K)
34
Molar Heat Capacity
25.52 J/mol·K
37
27.70 J/mol·K
14
Thermal Conductivity
7.97 W/m·K
99+
10.70 W/m·K
99+
Critical Temperature
Not Available
Not Available
Thermal Expansion
13.40 µm/(m·K)
28
9.90 µm/(m·K)
40
Enthalpy
Enthalpy of Vaporization
151.00 kJ/mol
99+
230.00 kJ/mol
39
Enthalpy of Fusion
10.90 kJ/mol
33
11.05 kJ/mol
32
Enthalpy of Atomization
207.10 kJ/mol
99+
301.00 kJ/mol
36
Standard Molar Entropy
56.70 J/mol.K
24
75.60 J/mol.K
7
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