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Ytterbium vs Mercury


Mercury vs Ytterbium


Periodic Table

Symbol
Yb   
Hg   

Group Number
Not Available   
12   
6

Period Number
6   
6   

Block
f block   
d block   

Element Family
Lanthanide   
Transition Metal   

CAS Number
7440644   
26
7439976   
99+

Space Group Name
Fm_ 3m   
R_ 3m   

Space Group Number
225.00   
2
166.00   
6

Facts

Interesting Facts
  • Ytterbium metal oxidizes rapidly if exposed to air.
  • Ytterbium metal can dissolve quickly in Mineral acid.
  
  • 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.
  

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

History
  
  

Who Discovered
Jean Charles Galissard de Marignac   
Ancient Chinese and Indians   

Discovery
In 1878   
Before 2000 BCE   

Abundance
  
  

Abundance In Universe
2 * 10-7 %   
22
Not Available   

Abundance In Sun
~0.0000001 %   
26
~-9999 %   

Abundance In Meteorites
0.00 %   
36
Not Available   

Abundance In Earth's Crust
0.00 %   
33
0.05 %   
9

Abundance In Oceans
0.00 %   
37
Not Available   

Uses

Uses & Benefits
  • Ytterbium metal is used in memory devices and tuneable laser.
  • It is also used as industrial catalyst as the other catalysts are too toxic and polluting.
  
  • 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.
  

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

Medical Uses
NA   
Dentistry   

Other Uses
Alloys   
Alloys, Mirror Manufacturing, Pharmaceutical Industry   

Biological Properties
  
  

Toxicity
Highly Toxic   
Highly Toxic   

Present in Human Body
No   
Yes   

In Blood
Not Available   
0.01 Blood/mg dm-3   
23

In Bone
Not Available   
0.45 p.p.m.   
19

Physical Properties

Melting Point
824.00 °C   
99+
Not Available   

Boiling Point
1,196.00 °C   
99+
356.58 °C   
99+

Appearance
  
  

Physical State
Solid   
Liquid   

Color
Silvery White   
Silver   

Luster
Metallic   
NA   

Hardness
  
  

Brinell Hardness
343.00 MPa   
31
Not Available   

Vickers Hardness
206.00 MPa   
33
Not Available   

Speed of Sound
1,590.00 m/s   
99+
1,451.40 m/s   
99+

Optical Properties
  
  

Refractive Index
Not Available   
1.00   
3

Reflectivity
Not Available   
73.00 %   
8

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
Yb   
Hg   

Isotopes
  
  

Known Isotopes
30   
9
34   
5

Electronegativity
  
  

Pauling Electronegativity
Not Available   
2.00   
7

Sanderson Electronegativity
Not Available   
2.20   
7

Allred Rochow Electronegativity
1.06   
33
1.44   
17

Mulliken-Jaffe Electronegativity
Not Available   
1.81   
9

Allen Electronegativity
Not Available   
1.44   
30

Electropositivity
  
  

Pauling Electropositivity
Not Available   
2.00   
99+

Ionization Energies
  
  

1st Energy Level
603.40 kJ/mol   
99+
1,007.10 kJ/mol   
4

2nd Energy Level
1,174.80 kJ/mol   
99+
1,810.00 kJ/mol   
20

3rd Energy Level
2,417.00 kJ/mol   
99+
3,300.00 kJ/mol   
20

4th Energy Level
4,203.00 kJ/mol   
31
Not Available   

Electrochemical Equivalent
2.15 g/amp-hr   
25
3.74 g/amp-hr   
10

Electron Work Function
Not Available   
4.49 eV   
15

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

Atomic Properties

Atomic Number
70   
99+
80   
36

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

Crystal Structure
Face Centered Cubic (FCC)   
Rhombohedral (RHO)   

Crystal Lattice
FCC-Crystal-Structure-of-Ytterbium.jpg#100   
RHO-Crystal-Structure-of-Mercury.jpg#100   

Atom
  
  

Number of Protons
70   
99+
80   
36

Number of Neutrons
103   
31
121   
22

Number of Electrons
70   
99+
80   
36

Radius of an Atom
  
  

Atomic Radius
176.00 pm   
18
151.00 pm   
32

Covalent Radius
187.00 pm   
20
132.00 pm   
99+

Van der Waals Radius
242.00 pm   
12
155.00 pm   
99+

Atomic Weight
173.05 amu   
99+
200.59 amu   
32

Atomic Volume
24.79 cm3/mol   
9
14.82 cm3/mol   
35

Adjacent Atomic Numbers
  
  

Previous Element
Thulium
  
Gold
  

Next Element
Lutetium
  
Thallium
  

Valence Electron Potential
50.30 (-eV)   
27
28.20 (-eV)   
99+

Lattice Constant
548.47 pm   
11
300.50 pm   
99+

Lattice Angles
π/2, π/2, π/2   
NA   

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
6.90 g/cm3   
99+
13.53 g/cm3   
24

Density When Liquid (at m.p.)
6.21 g/cm3   
99+
Not Available   

Tensile Strength
58.00 MPa   
18
Not Available   

Viscosity
Not Available   
0.00   
1

Vapor Pressure
  
  

Elasticity properties
  
  

Shear Modulus
9.90 GPa   
99+
Not Available   

Bulk Modulus
30.50 GPa   
39
Not Available   

Young's Modulus
23.90 GPa   
99+
Not Available   

Poisson Ratio
0.21   
33
Not Available   

Other Mechanical Properties
Ductile, Malleable   
NA   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
6.97   
99+
13.53   
16

Magnetic Ordering
Paramagnetic   
Diamagnetic   

Electrical Properties
  
  

Electrical Property
Conductor   
Conductor   

Resistivity
0.25 nΩ·m   
99+
961.00 nΩ·m   
1

Electrical Conductivity
0.04 106/cm Ω   
38
0.01 106/cm Ω   
99+

Electron Affinity
50.00 kJ/mol   
21
0.00 kJ/mol   
40

Thermal Properties

Specific Heat
0.15 J/(kg K)   
36
0.14 J/(kg K)   
38

Molar Heat Capacity
26.74 J/mol·K   
25
27.98 J/mol·K   
13

Thermal Conductivity
38.50 W/m·K   
35
8.30 W/m·K   
99+

Critical Temperature
26.30 K   
7
1,750.00 K   
6

Thermal Expansion
26.30 µm/(m·K)   
14
60.40 µm/(m·K)   
5

Enthalpy
  
  

Enthalpy of Vaporization
128.90 kJ/mol   
99+
56.90 kJ/mol   
99+

Enthalpy of Fusion
7.66 kJ/mol   
99+
2.29 kJ/mol   
99+

Enthalpy of Atomization
180.00 kJ/mol   
99+
61.50 kJ/mol   
99+

Standard Molar Entropy
59.90 J/mol.K   
21
75.80 J/mol.K   
6

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