Group Number
Not Available
Element Family
Alkaline Earth
Actinide
Space Group Name
Im_ 3m
Not Available
Space Group Number
Not Available
Interesting Facts
- Radium metal is the heaviest metal of Alkaline earth metals column.
- Radium metal is highly radioactive and does not have any stable isotopes.
- Mendelevium metal is synthetically produced metal.
- Mendelevium metal has been produced in only trace amount.
Sources
Mining, Ores of metals
Bombarding Einsteinium with Helium Ions
Who Discovered
Not Available
Lawrence Berkeley National Laboratory
Discovery
In 1898
In 1955
Abundance In Earth's Crust
Not Available
Abundance In Oceans
Not Available
Abundance In Humans
Not Available
Uses & Benefits
- It is a highly radioactive metal; and sometime Radium-223 is used to treat prostate cancer.
-
It is used in luminous paints.
- Currently known uses of Mendelevium metal are limited to research purpose only.
Medical Uses
Pharmaceutical Industry
NA
Toxicity
Highly Toxic
Unknown
Present in Human Body
No
No
Boiling Point
Not Available
Physical State
Solid
Solid
Color
Silvery White
Unknown
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
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
Ionization, Radioactive Isotopes, Radioactivity
Electron Configuration
[Rn] 7s2
[Rn] 5f13 7s2
Crystal Structure
Body Centered Cubic (BCC)
Not Known
Crystal Lattice
BCC-Crystal-Structure-.jpg#100
Unknown-Crystal-Structure-of-Mendelevium.jpg#100
Covalent Radius
Not Available
Atomic Volume
Not Available
Valence Electron Potential
Not Available
Lattice Constant
Not Available
Lattice Angles
π/2, π/2, π/2
NA
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
Specific Gravity
Not Available
Magnetic Ordering
Nonmagnetic
Unknown
Electrical Property
NA
Unknown
Resistivity
Not Available
Specific Heat
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