Seaborgium Roentgenium Comparison
Symbol
Sg
  
Rg
  
Period Number
7
  
7
  
Block
d block
  
d block
  
Element Family
Transition Metal
  
Unknown
  
Space Group Name
Not Available
  
Not Available
  
Space Group Number
Not Available
  
Interesting Facts
- Seaborgium most stable isotope is Sg and it has 2.1 min of half- life.
- And other isotopes of Seaborgium have half-lives as short as 3 ms.
  
Not Available
  
Sources
Synthetically Produced
  
Synthetically Produced
  
History
  
  
Who Discovered
Lawrence Berkeley National Laboratory
  
Gesellschaft für Schwerionenforschung
  
Discovery
In 1974
  
In 1994
  
Abundance
  
  
Uses & Benefits
- Currently known uses of Seaborgium metal are limited to research purpose only.
  
- Currently known uses of Roentgenium metal are limited to research purpose only.
  
Industrial Uses
NA
  
NA
  
Medical Uses
NA
  
NA
  
Other Uses
Research Purposes
  
Research Purposes
  
Biological Properties
  
  
Present in Human Body
No
  
No
  
In Blood
Not Available
  
0.00 Blood/mg dm-3
  
37
In Bone
Not Available
  
0.00 p.p.m.
  
36
Melting Point
Not Available
  
Not Available
  
Boiling Point
Not Available
  
Not Available
  
Appearance
  
  
Physical State
Solid
  
Solid
  
Color
Unknown
  
Silver
  
Luster
Unknown Luster
  
Unknown Luster
  
Hardness
  
  
Speed of Sound
Not Available
  
Not Available
  
Optical Properties
  
  
Allotropes
No
  
No
  
α Allotropes
Not Available
  
Not Available
  
β Allotropes
Not Available
  
Not Available
  
γ Allotropes
Not Available
  
Not Available
  
Chemical Formula
Sg
  
Rg
  
Isotopes
  
  
Electronegativity
  
  
Electropositivity
  
  
Ionization Energies
  
  
1st Energy Level
757.40 kJ/mol
  
21
1,022.70 kJ/mol
  
3
2nd Energy Level
1,732.90 kJ/mol
  
28
2,074.40 kJ/mol
  
10
3rd Energy Level
2,483.50 kJ/mol
  
99+
3,077.90 kJ/mol
  
24
4th Energy Level
3,415.60 kJ/mol
  
99+
4,052.40 kJ/mol
  
36
5th Energy Level
4,561.80 kJ/mol
  
38
5,306.70 kJ/mol
  
31
6th Energy Level
5,715.80 kJ/mol
  
25
Not Available
  
Electrochemical Equivalent
Not Available
  
Not Available
  
Electron Work Function
Not Available
  
Not Available
  
Other Chemical Properties
NA
  
NA
  
Electron Configuration
[Rn] 5f14 6d2 7s2
  
[Rn] 5f14 6d9 7s2
  
Crystal Structure
Body Centered Cubic (BCC)
  
Body Centered Cubic (BCC)
  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100
  
BCC-Crystal-Structure-.jpg#100
  
Atom
  
  
Radius of an Atom
  
  
Atomic Radius
Not Available
  
Covalent Radius
Not Available
  
Atomic Volume
Not Available
  
Not Available
  
Adjacent Atomic Numbers
  
  
Valence Electron Potential
Not Available
  
Not Available
  
Lattice Constant
Not Available
  
Not Available
  
Lattice Angles
Unknown
  
NA
  
Lattice C/A Ratio
Not Available
  
Not Available
  
Density
  
  
Density At Room Temperature
Tensile Strength
Not Available
  
Not Available
  
Viscosity
Not Available
  
Not Available
  
Vapor Pressure
  
  
Elasticity properties
  
  
Poisson Ratio
Not Available
  
Not Available
  
Other Mechanical Properties
Unknown
  
Unknown
  
Magnetic Characteristics
  
  
Electrical Properties
  
  
Specific Heat
Not Available
  
Not Available
  
Molar Heat Capacity
Not Available
  
Not Available
  
Thermal Conductivity
Not Available
  
Not Available
  
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
Not Available
  
Not Available
  
Enthalpy
  
  
Standard Molar Entropy
Not Available
  
Not Available