Group Number
Not Available
Element Family
Alkali
Actinide
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.
- The most stable isotope of Nobelium metal is No-259.
- No-259 has a half-life of fifty-eight minutes.
Sources
Formed by Decay Process, Mining
Bombarding Curium-246 or Curium-249 with Carbon-12 Nuclei, Found in Minerals, Mining
Who Discovered
Marguerite Perey
Joint Institute for Nuclear Research
Discovery
In 1939
In 1966
Uses & Benefits
- Francium has no known uses as it has a half life of only 22 minutes.
- Currently known uses of Nobelium metal are limited to research purpose only.
Other Uses
NA
Research Purposes
Present in Human Body
No
No
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
Allred Rochow Electronegativity
Mulliken-Jaffe Electronegativity
Not Available
Allen Electronegativity
Not Available
Pauling Electropositivity
2nd Energy Level
Not Available
3rd Energy Level
Not Available
4th Energy Level
Not Available
Electrochemical Equivalent
Electron Work Function
Not Available
Not Available
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility
Ionization, Radioactive Isotopes, Radioactivity
Electron Configuration
[Rn] 7s1
[Rn] 5f14 7s2
Crystal Structure
Body Centered Cubic (BCC)
Not Known
Crystal Lattice
BCC-Crystal-Structure-.jpg#100
Unknown-Crystal-Structure-of-Nobelium.jpg#100
Covalent Radius
Not Available
Atomic Volume
Not Available
Not Available
Valence Electron Potential
Lattice Constant
Not Available
Not Available
Lattice C/A Ratio
Not Available
Not Available
Density At Room Temperature
Not Available
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