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Roentgenium Mercury Comparison

Roentgenium
Mercury
Mercury Roentgenium comparison


Periodic Table
Symbol
Rg   
Hg   
Group Number
11   
7
12   
6
Period Number
7   
6   
Block
d block   
d block   
Element Family
Unknown   
Transition Metal   
CAS Number
54386242   
1
7439976   
99+
Space Group Name
Not Available   
R_ 3m   
Space Group Number
194.00   
5
166.00   
6
Facts
Interesting Facts
Not Available   
  • 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
Synthetically Produced   
Mining, Ores of Minerals   
History
  
  
Who Discovered
Gesellschaft für Schwerionenforschung   
Ancient Chinese and Indians   
Discovery
In 1994   
Before 2000 BCE   
Abundance
  
  
Abundance In Earth's Crust
Not Available   
0.05 %   
9
Uses
Uses & Benefits
  • Currently known uses of Roentgenium metal are limited to research purpose only.
  
  • 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
NA   
Electrical Industry, Electronic Industry   
Medical Uses
NA   
Dentistry   
Other Uses
Research Purposes   
Alloys, Mirror Manufacturing, Pharmaceutical Industry   
Biological Properties
  
  
Toxicity
Unknown   
Highly Toxic   
Present in Human Body
No   
Yes   
In Blood
0.00 Blood/mg dm-3   
37
0.01 Blood/mg dm-3   
23
In Bone
0.00 p.p.m.   
36
0.45 p.p.m.   
19
Physical Properties
Melting Point
Not Available   
Not Available   
Boiling Point
Not Available   
356.58 °C   
99+
Appearance
  
  
Physical State
Solid   
Liquid   
Color
Silver   
Silver   
Luster
Unknown Luster   
NA   
Hardness
  
  
Speed of Sound
Not Available   
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
Rg   
Hg   
Isotopes
  
  
Known Isotopes
1   
34
34   
5
Electronegativity
  
  
Pauling Electronegativity
Not Available   
2.00   
7
Sanderson Electronegativity
Not Available   
2.20   
7
Allred Rochow Electronegativity
Not Available   
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
1,022.70 kJ/mol   
3
1,007.10 kJ/mol   
4
2nd Energy Level
2,074.40 kJ/mol   
10
1,810.00 kJ/mol   
20
3rd Energy Level
3,077.90 kJ/mol   
24
3,300.00 kJ/mol   
20
4th Energy Level
4,052.40 kJ/mol   
36
Not Available   
5th Energy Level
5,306.70 kJ/mol   
31
Not Available   
Electrochemical Equivalent
Not Available   
3.74 g/amp-hr   
10
Electron Work Function
Not Available   
4.49 eV   
15
Other Chemical Properties
NA   
Flammability, Ionization, Solubility   
Atomic Properties
Atomic Number
111   
7
80   
36
Electron Configuration
[Rn] 5f14 6d9 7s2   
[Xe] 4f14 5d10 6s2   
Crystal Structure
Body Centered Cubic (BCC)   
Rhombohedral (RHO)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
RHO-Crystal-Structure-of-Mercury.jpg#100   
Atom
  
  
Number of Protons
111   
7
80   
36
Number of Neutrons
161   
3
121   
22
Number of Electrons
111   
7
80   
36
Radius of an Atom
  
  
Atomic Radius
Not Available   
151.00 pm   
32
Covalent Radius
Not Available   
132.00 pm   
99+
Van der Waals Radius
Not Available   
155.00 pm   
99+
Atomic Weight
281.00 amu   
6
200.59 amu   
32
Atomic Volume
Not Available   
14.82 cm3/mol   
35
Adjacent Atomic Numbers
  
  
Previous Element
Darmstadtium
  
Gold
  
Next Element
Copernicium
  
Thallium
  
Valence Electron Potential
Not Available   
28.20 (-eV)   
99+
Lattice Constant
Not Available   
300.50 pm   
99+
Lattice Angles
NA   
NA   
Lattice C/A Ratio
Not Available   
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
28.70 g/cm3   
6
13.53 g/cm3   
24
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
0.00   
1
Vapor Pressure
  
  
Elasticity properties
  
  
Poisson Ratio
Not Available   
Not Available   
Other Mechanical Properties
Unknown   
NA   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
Not Available   
13.53   
16
Magnetic Ordering
Unknown   
Diamagnetic   
Electrical Properties
  
  
Electrical Property
Unknown   
Conductor   
Resistivity
Not Available   
961.00 nΩ·m   
1
Electrical Conductivity
Not Available   
0.01 106/cm Ω   
99+
Electron Affinity
Not Available   
0.00 kJ/mol   
40
Thermal Properties
Specific Heat
Not Available   
0.14 J/(kg K)   
38
Molar Heat Capacity
Not Available   
27.98 J/mol·K   
13
Thermal Conductivity
Not Available   
8.30 W/m·K   
99+
Critical Temperature
Not Available   
1,750.00 K   
6
Thermal Expansion
Not Available   
60.40 µm/(m·K)   
5
Enthalpy
  
  
Enthalpy of Vaporization
Not Available   
56.90 kJ/mol   
99+
Enthalpy of Fusion
Not Available   
2.29 kJ/mol   
99+
Enthalpy of Atomization
Not Available   
61.50 kJ/mol   
99+
Standard Molar Entropy
Not Available   
75.80 J/mol.K   
6
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