Element Family
Alkali
Transition Metal
Space Group Name
Not Available
Not Available
Space Group Number
Not Available
Not Available
Interesting Facts
- 223 Francium has the longest half life at 21.8.
- Francium metal is produced by alpha decay in 227Actinium 227.
- 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.
Sources
Formed by Decay Process, Mining
Synthetically Produced
Who Discovered
Marguerite Perey
Lawrence Berkeley National Laboratory
Discovery
In 1939
In 1974
Uses & Benefits
- Francium has no known uses as it has a half life of only 22 minutes.
- Currently known uses of Seaborgium metal are limited to research purpose only.
Other Uses
NA
Research Purposes
Present in Human Body
No
No
Melting Point
Not Available
Boiling Point
Not Available
Physical State
Solid
Solid
Speed of Sound
Not Available
Not Available
α Allotropes
Not Available
Not Available
β Allotropes
Not Available
Not Available
γ Allotropes
Not Available
Not Available
Pauling Electronegativity
Not Available
Allred Rochow Electronegativity
Not Available
Mulliken-Jaffe Electronegativity
Not Available
Allen Electronegativity
Not Available
Pauling Electropositivity
Not Available
2nd Energy Level
Not Available
3rd Energy Level
Not Available
4th Energy Level
Not Available
5th Energy Level
Not Available
6th Energy Level
Not Available
Electrochemical Equivalent
Not Available
Electron Work Function
Not Available
Not Available
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility
NA
Electron Configuration
[Rn] 7s1
[Rn] 5f14 6d2 7s2
Crystal Structure
Body Centered Cubic (BCC)
Body Centered Cubic (BCC)
Crystal Lattice
BCC-Crystal-Structure-.jpg#100
BCC-Crystal-Structure-.jpg#100
Atomic Radius
Not Available
Van der Waals Radius
Not Available
Atomic Volume
Not Available
Not Available
Valence Electron Potential
Not Available
Lattice Constant
Not Available
Not Available
Lattice Angles
NA
Unknown
Lattice C/A Ratio
Not Available
Not Available
Density At Room Temperature
Tensile Strength
Not Available
Not Available
Viscosity
Not Available
Not Available
Poisson Ratio
Not Available
Not Available
Other Mechanical Properties
NA
Unknown
Magnetic Ordering
Paramagnetic
Unknown
Electrical Property
Poor Conductor
Unknown
Resistivity
Not Available
Electrical Conductivity
Not Available
Specific Heat
Not Available
Not Available
Molar Heat Capacity
Not Available
Not Available
Thermal Conductivity
Not Available
Critical Temperature
Not Available
Not Available
Thermal Expansion
Not Available
Not Available
Enthalpy of Atomization
Not Available
Standard Molar Entropy
Not Available
Not Available