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Mercury vs Dysprosium

Mercury
Dysprosium
Dysprosium vs Mercury


Periodic Table
Symbol
Hg   
Dy   
Group Number
12   
6
Not Available   
Period Number
6   
6   
Block
d block   
f block   
Element Family
Transition Metal   
Lanthanide   
CAS Number
7439976   
99+
7429916   
99+
Space Group Name
R_ 3m   
P63/mmc   
Space Group Number
166.00   
6
194.00   
5
Facts
Interesting Facts
  • At room temperature mercury is found in a liquid state.
  • A coin of pound or rupees floats in mercury.
  • Because of its low melting point and boiling point it is used in thermometers.
  
  • Dysprosium acts stable in air at room temperature.
  • Dysprosium behaves very much like paramagnetic metal.
  
Sources
Mining, Ores of Minerals   
Found in Minerals, Mining, Ores of Minerals   
History
  
  
Who Discovered
Ancient Chinese and Indians   
Lecoq de Boisbaudran   
Discovery
Before 2000 BCE   
In 1886   
Abundance
  
  
Abundance In Universe
Not Available   
2 * 10-7 %   
22
Abundance In Sun
~-9999 %   
~0.0000002 %   
25
Abundance In Meteorites
Not Available   
0.00 %   
33
Abundance In Earth's Crust
0.05 %   
9
0.00 %   
28
Abundance In Oceans
Not Available   
0.00 %   
35
Uses
Uses & Benefits
  • It is a liquid metal at room temperature, but it is a toxic heavy metal and hence many uses of mercury are under review or phased out.
  • It is manly used as a catalysts in chemical industry.
  
  • 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
Electrical Industry, Electronic Industry   
NA   
Medical Uses
Dentistry   
NA   
Other Uses
Alloys, Mirror Manufacturing, Pharmaceutical Industry   
Alloys, Nuclear Research   
Biological Properties
  
  
Toxicity
Highly Toxic   
Mildly Toxic   
Present in Human Body
Yes   
No   
In Blood
0.01 Blood/mg dm-3   
23
Not Available   
In Bone
0.45 p.p.m.   
19
Not Available   
Physical Properties
Melting Point
Not Available   
1,407.00 °C   
32
Boiling Point
356.58 °C   
99+
2,562.00 °C   
99+
Appearance
  
  
Physical State
Liquid   
Solid   
Color
Silver   
Silvery White   
Luster
NA   
Metallic   
Hardness
  
  
Brinell Hardness
Not Available   
500.00 MPa   
23
Vickers Hardness
Not Available   
540.00 MPa   
20
Speed of Sound
1,451.40 m/s   
99+
2,710.00 m/s   
33
Optical Properties
  
  
Refractive Index
1.00   
3
Not Available   
Reflectivity
73.00 %   
8
Not Available   
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
Hg   
Dy   
Isotopes
  
  
Known Isotopes
34   
5
29   
10
Electronegativity
  
  
Pauling Electronegativity
2.00   
7
1.22   
38
Sanderson Electronegativity
2.20   
7
Not Available   
Allred Rochow Electronegativity
1.44   
17
1.10   
30
Mulliken-Jaffe Electronegativity
1.81   
9
Not Available   
Allen Electronegativity
1.44   
30
Not Available   
Electropositivity
  
  
Pauling Electropositivity
2.00   
99+
2.78   
16
Ionization Energies
  
  
1st Energy Level
1,007.10 kJ/mol   
4
573.00 kJ/mol   
99+
2nd Energy Level
1,810.00 kJ/mol   
20
1,130.00 kJ/mol   
99+
3rd Energy Level
3,300.00 kJ/mol   
20
2,200.00 kJ/mol   
99+
4th Energy Level
Not Available   
3,990.00 kJ/mol   
37
Electrochemical Equivalent
3.74 g/amp-hr   
10
2.02 g/amp-hr   
29
Electron Work Function
4.49 eV   
15
Not Available   
Other Chemical Properties
Flammability, Ionization, Solubility   
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
Atomic Properties
Atomic Number
80   
36
66   
99+
Electron Configuration
[Xe] 4f14 5d10 6s2   
[Xe] 4f9 6s2   
Crystal Structure
Rhombohedral (RHO)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
RHO-Crystal-Structure-of-Mercury.jpg#100   
HCP-Crystal-Structure-of-Dysprosium.jpg#100   
Atom
  
  
Number of Protons
80   
36
66   
99+
Number of Neutrons
121   
22
96   
35
Number of Electrons
80   
36
66   
99+
Radius of an Atom
  
  
Atomic Radius
151.00 pm   
32
178.00 pm   
16
Covalent Radius
132.00 pm   
99+
192.00 pm   
17
Van der Waals Radius
155.00 pm   
99+
229.00 pm   
20
Atomic Weight
200.59 amu   
32
162.50 amu   
99+
Atomic Volume
14.82 cm3/mol   
35
19.00 cm3/mol   
23
Adjacent Atomic Numbers
  
  
Previous Element
Gold
  
Terbium
  
Next Element
Thallium
  
Holmium
  
Valence Electron Potential
28.20 (-eV)   
99+
47.40 (-eV)   
32
Lattice Constant
300.50 pm   
99+
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
13.53 g/cm3   
24
8.54 g/cm3   
99+
Density When Liquid (at m.p.)
Not Available   
8.37 g/cm3   
25
Tensile Strength
Not Available   
120.00 MPa   
15
Viscosity
0.00   
1
Not Available   
Vapor Pressure
  
  
Elasticity properties
  
  
Shear Modulus
Not Available   
24.70 GPa   
31
Bulk Modulus
Not Available   
40.50 GPa   
31
Young's Modulus
Not Available   
61.40 GPa   
33
Poisson Ratio
Not Available   
0.25   
25
Other Mechanical Properties
NA   
Sectile   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
13.53   
16
8.55   
38
Magnetic Ordering
Diamagnetic   
Paramagnetic   
Electrical Properties
  
  
Electrical Property
Conductor   
Conductor   
Resistivity
961.00 nΩ·m   
1
926.00 nΩ·m   
2
Electrical Conductivity
0.01 106/cm Ω   
99+
0.01 106/cm Ω   
99+
Electron Affinity
0.00 kJ/mol   
40
50.00 kJ/mol   
21
Thermal Properties
Specific Heat
0.14 J/(kg K)   
38
0.17 J/(kg K)   
34
Molar Heat Capacity
27.98 J/mol·K   
13
27.70 J/mol·K   
14
Thermal Conductivity
8.30 W/m·K   
99+
10.70 W/m·K   
99+
Critical Temperature
1,750.00 K   
6
Not Available   
Thermal Expansion
60.40 µm/(m·K)   
5
9.90 µm/(m·K)   
40
Enthalpy
  
  
Enthalpy of Vaporization
56.90 kJ/mol   
99+
230.00 kJ/mol   
39
Enthalpy of Fusion
2.29 kJ/mol   
99+
11.05 kJ/mol   
32
Enthalpy of Atomization
61.50 kJ/mol   
99+
301.00 kJ/mol   
36
Standard Molar Entropy
75.80 J/mol.K   
6
75.60 J/mol.K   
7
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