Element Family
Alkaline Earth
Transition Metal
Space Group Name
Im_ 3m
P63/mmc
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.
- Original name of Technetium was Masurium.
- At the time of its discovery it found in sample of Molybdenum.
Sources
Mining, Ores of metals
Made by Bombarding Molybdenum with Deuterons
Who Discovered
Not Available
Emilio Segrè and Carlo Perriero
Discovery
In 1898
In 1937
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.
- Technetium is a radioactive metal and hence it is used for medical studies and other research purposes.
Medical Uses
Pharmaceutical Industry
NA
Other Uses
NA
Alloys, Nuclear Research, Research Purposes
Toxicity
Highly Toxic
Low Toxic
Present in Human Body
No
No
Physical State
Solid
Solid
Color
Silvery White
Shiny Gray
Speed of Sound
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
Pauling Electropositivity
3rd Energy Level
Not Available
Electrochemical Equivalent
Electron Work Function
Not Available
Not Available
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility
Electron Configuration
[Rn] 7s2
[Kr] 4d5 5s2
Crystal Structure
Body Centered Cubic (BCC)
Hexagonal Close Packed (HCP)
Crystal Lattice
BCC-Crystal-Structure-.jpg#100
HCP-Crystal-Structure-of-Technetium.jpg#100
Atomic Radius
Not Available
Valence Electron Potential
Lattice Angles
π/2, π/2, π/2
π/2, π/2, 2 π/3
Lattice C/A Ratio
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
NA
Magnetic Ordering
Nonmagnetic
Paramagnetic
Electrical Property
NA
Conductor
Electrical Conductivity
Not Available
Electron Affinity
Not Available
Molar Heat Capacity
Not Available
Critical Temperature
Not Available
Not Available
Thermal Expansion
Not Available
Enthalpy of Vaporization
Not Available
Enthalpy of Fusion
Not Available