Home
 Compare Metals

Mercury vs Polonium

Mercury
Polonium
Polonium vs Mercury


Periodic Table
Symbol
Hg  
Po  
Group Number
12  
6
16  
2
Period Number
6  
6  
Block
d block  
p block  
Element Family
Transition Metal  
Post-​Transition  
CAS Number
7439976  
99+
7440086  
99+
Space Group Name
R_ 3m  
Pm-3m  
Space Group Number
166.00  
6
221.00  
3
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.
  
  • Polonium was the first radioactive element to be discovered.
  • Polonium element and its compounds are highly radioactive.
  • Its alloy with Beryllium provides source of neutrons.
  
Sources
Mining, Ores of Minerals  
Mining, Ores of metals  
History
  
  
Who Discovered
Ancient Chinese and Indians  
Pierre Curie and Marie Curie  
Discovery
Before 2000 BCE  
In 1898  
Abundance
  
  
Abundance In Earth's Crust
0.05 %  
9
Not Available  
Abundance In Oceans
Not Available  
0.00 %  
99+
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.
  
  • Polonium metal has different Allotropes, it is used in antistatic devices and for research purpose.
  • A 1 gram of Polonium can reach a temperature of 500°C, hence it is used as a heat source for space equipment.
  
Industrial Uses
Electrical Industry, Electronic Industry  
Aerospace Industry, Ammunition Industry  
Medical Uses
Dentistry  
NA  
Other Uses
Alloys, Mirror Manufacturing, Pharmaceutical Industry  
Alloys  
Biological Properties
  
  
Toxicity
Highly Toxic  
Highly Toxic  
Present in Human Body
Yes  
No  
In Blood
0.01 Blood/mg dm-3  
23
0.00 Blood/mg dm-3  
37
In Bone
0.45 p.p.m.  
19
0.00 p.p.m.  
36
Physical Properties
Melting Point
Not Available  
254.00 °C  
99+
Boiling Point
356.58 °C  
99+
962.00 °C  
99+
Appearance
  
  
Physical State
Liquid  
Solid  
Color
Silver  
Silver  
Luster
NA  
NA  
Hardness
  
  
Speed of Sound
1,451.40 m/s  
99+
Not Available  
Optical Properties
  
  
Refractive Index
1.00  
3
Not Available  
Reflectivity
73.00 %  
8
Not Available  
Allotropes
No  
Yes  
α Allotropes
Not Available  
α-polonium  
β Allotropes
Not Available  
β-polonium  
γ Allotropes
Not Available  
Not Available  
Chemical Properties
Chemical Formula
Hg  
Po  
Isotopes
  
  
Known Isotopes
34  
5
29  
10
Electronegativity
  
  
Pauling Electronegativity
2.00  
7
2.00  
7
Sanderson Electronegativity
2.20  
7
Not Available  
Allred Rochow Electronegativity
1.44  
17
1.76  
2
Mulliken-Jaffe Electronegativity
1.81  
9
2.48  
1
Allen Electronegativity
1.44  
30
2.19  
2
Electropositivity
  
  
Pauling Electropositivity
2.00  
99+
2.00  
99+
Ionization Energies
  
  
1st Energy Level
1,007.10 kJ/mol  
4
812.10 kJ/mol  
14
2nd Energy Level
1,810.00 kJ/mol  
20
Not Available  
3rd Energy Level
3,300.00 kJ/mol  
20
Not Available  
Electrochemical Equivalent
3.74 g/amp-hr  
10
3.90 g/amp-hr  
8
Electron Work Function
4.49 eV  
15
Not Available  
Other Chemical Properties
Flammability, Ionization, Solubility  
Ionization, Radioactive Isotopes, Solubility  
Atomic Properties
Atomic Number
80  
36
84  
32
Electron Configuration
[Xe] 4f14 5d10 6s2  
[Xe] 4f14 5d10 6s2 6p4  
Crystal Structure
Rhombohedral (RHO)  
Monoclinic (MON)  
Crystal Lattice
RHO-Crystal-Structure-of-Mercury.jpg#100  
MON-Crystal-Structure-of-Polonium.jpg#100  
Atom
  
  
Number of Protons
80  
36
84  
32
Number of Neutrons
121  
22
125  
19
Number of Electrons
80  
36
84  
32
Radius of an Atom
  
  
Atomic Radius
151.00 pm  
32
168.00 pm  
23
Covalent Radius
132.00 pm  
99+
140.00 pm  
99+
Van der Waals Radius
155.00 pm  
99+
197.00 pm  
29
Atomic Weight
200.59 amu  
32
209.00 amu  
28
Atomic Volume
14.82 cm3/mol  
35
22.23 cm3/mol  
13
Adjacent Atomic Numbers
  
  
Previous Element
Gold
  
Bismuth
  
Next Element
Thallium
  
Francium
  
Valence Electron Potential
28.20 (-eV)  
99+
Not Available  
Lattice Constant
300.50 pm  
99+
335.90 pm  
99+
Lattice Angles
NA  
π/2, π/2, π/2  
Lattice C/A Ratio
Not Available  
Not Available  
Mechanical Properties
Density
  
  
Density At Room Temperature
13.53 g/cm3  
24
9.20 g/cm3  
99+
Density When Liquid (at m.p.)
Not Available  
9.40 g/cm3  
19
Tensile Strength
Not Available  
Not Available  
Viscosity
0.00  
1
Not Available  
Vapor Pressure
  
  
Elasticity properties
  
  
Poisson Ratio
Not Available  
Not Available  
Other Mechanical Properties
NA  
NA  
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
13.53  
16
9.32  
31
Magnetic Ordering
Diamagnetic  
Nonmagnetic  
Electrical Properties
  
  
Electrical Property
Conductor  
Conductor  
Resistivity
961.00 nΩ·m  
1
0.40 nΩ·m  
99+
Electrical Conductivity
0.01 106/cm Ω  
99+
0.02 106/cm Ω  
99+
Electron Affinity
0.00 kJ/mol  
40
183.30 kJ/mol  
3
Thermal Properties
Specific Heat
0.14 J/(kg K)  
38
0.12 J/(kg K)  
40
Molar Heat Capacity
27.98 J/mol·K  
13
26.40 J/mol·K  
28
Thermal Conductivity
8.30 W/m·K  
99+
20.00 W/m·K  
99+
Critical Temperature
1,750.00 K  
6
Not Available  
Thermal Expansion
60.40 µm/(m·K)  
5
23.50 µm/(m·K)  
16
Enthalpy
  
  
Enthalpy of Vaporization
56.90 kJ/mol  
99+
60.30 kJ/mol  
99+
Enthalpy of Fusion
2.29 kJ/mol  
99+
13.00 kJ/mol  
26
Enthalpy of Atomization
61.50 kJ/mol  
99+
134.00 kJ/mol  
99+
Standard Molar Entropy
75.80 J/mol.K  
6
Not Available  
Periodic Table >>
<< All

Compare Transition Metals

Transition Metals

Transition Metals

» More Transition Metals

Compare Transition Metals

» More Compare Transition Metals
Home | About | Contact | Disclaimer | Terms of use
© A softusvista inc. venture!