Group Number
Not Available
Element Family
Lanthanide
Transition Metal
Space Group Name
Not Available
R_ 3m
Space Group Number
Not Available
Interesting Facts
- Promethium metal found in Pitchblende.
- Promethium metal is highly radioactive metal.
- At room temperature mercury is found in a liquid state.
- A coin of pound or rupees floats in mercury.
- Because of its low melting point and boiling point it is used in thermometers.
Sources
Found in Minerals, Mining
Mining, Ores of Minerals
Who Discovered
Chien Shiung Wu, Emilio Segrè, Hans Bethe
Ancient Chinese and Indians
Discovery
In 1942
Before 2000 BCE
Abundance In Earth's Crust
Not Available
Uses & Benefits
- It is used for research purpose. Very small amount of this metal is used in atomic batteries.
- Its radioactive decay is used for a phosphor to give off light. The light emitted is converted into electricity.
- It is a liquid metal at room temperature, but it is a toxic heavy metal and hence many uses of mercury are under review or phased out.
- It is manly used as a catalysts in chemical industry.
Industrial Uses
NA
Electrical Industry, Electronic Industry
Medical Uses
NA
Dentistry
Other Uses
NA
Alloys, Mirror Manufacturing, Pharmaceutical Industry
Toxicity
Non Toxic
Highly Toxic
Present in Human Body
No
Yes
Melting Point
Not Available
Physical State
Solid
Liquid
Speed of Sound
Not Available
Refractive Index
Not Available
Reflectivity
Not Available
α Allotropes
Not Available
Not Available
β Allotropes
Not Available
Not Available
γ Allotropes
Not Available
Not Available
Pauling Electronegativity
Not Available
Sanderson Electronegativity
Not Available
Allred Rochow Electronegativity
Mulliken-Jaffe Electronegativity
Not Available
Allen Electronegativity
Not Available
Pauling Electropositivity
Not Available
4th Energy Level
Not Available
Electrochemical Equivalent
Electron Work Function
Not Available
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility
Flammability, Ionization, Solubility
Electron Configuration
[Xe] 4f5 6s2
[Xe] 4f14 5d10 6s2
Crystal Structure
Double Hexagonal Close Packed (DHCP)
Rhombohedral (RHO)
Crystal Lattice
DHCP-Crystal-Structure-of-Promethium.jpg#100
RHO-Crystal-Structure-of-Mercury.jpg#100
Valence Electron Potential
Lattice Constant
Not Available
Lattice Angles
Unknown
NA
Lattice C/A Ratio
Not Available
Not Available
Density At Room Temperature
Tensile Strength
Not Available
Not Available
Shear Modulus
Not Available
Bulk Modulus
Not Available
Young's Modulus
Not Available
Poisson Ratio
Not Available
Other Mechanical Properties
NA
NA
Magnetic Ordering
Paramagnetic
Diamagnetic
Electrical Property
Conductor
Conductor
Electrical Conductivity
Not Available
Molar Heat Capacity
Not Available
Critical Temperature
Not Available
Enthalpy of Vaporization
Not Available
Standard Molar Entropy
Not Available