Element Family
Transition Metal
Post-Transition
Space Group Name
P63/mmc
Pm-3m
Interesting Facts
- Osmium metal does not oxidize in air unless it is heated.
- But if it heated den it forms Osmium Tetroxide, which is highly toxic.
- Polonium was the first radioactive element to be discovered.
- Polonium element and its compounds are highly radioactive.
- Its alloy with Beryllium provides source of neutrons.
Sources
Found As a By-product, Found in Minerals, Mining
Mining, Ores of metals
Who Discovered
Smithson Tennant
Pierre Curie and Marie Curie
Discovery
In 1803
In 1898
Abundance In Universe
Not Available
Abundance In Sun
~-9999 %
Abundance In Meteorites
Not Available
Abundance In Earth's Crust
Not Available
Abundance In Oceans
Not Available
Uses & Benefits
- Its has very limited uses and its alloys are very hard and are used in the manufacturing of pen tips, pivots, needles and electrical contacts.
-
It is also used as industrial catalyst to speed up the chemical reaction.
- Polonium metal has different Allotropes, it is used in antistatic devices and for research purpose.
- A 1 gram of Polonium can reach a temperature of 500°C, hence it is used as a heat source for space equipment.
Industrial Uses
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry
Aerospace Industry, Ammunition Industry
Toxicity
Highly Toxic
Highly Toxic
Present in Human Body
No
No
Physical State
Solid
Solid
Color
Silvery Bluish-Gray
Silver
Mohs Hardness
Not Available
Brinell Hardness
Not Available
Speed of Sound
Not Available
α Allotropes
Not Available
α-polonium
β Allotropes
Not Available
β-polonium
γ Allotropes
Not Available
Not Available
Pauling Electronegativity
Allred Rochow Electronegativity
Mulliken-Jaffe Electronegativity
Not Available
Pauling Electropositivity
2nd Energy Level
Not Available
3rd Energy Level
Not Available
Electrochemical Equivalent
Electron Work Function
Not Available
Other Chemical Properties
Chemical Stability, Ionization, Solubility
Ionization, Radioactive Isotopes, Solubility
Electron Configuration
[Xe] 4f14 5d6 6s2
[Xe] 4f14 5d10 6s2 6p4
Crystal Structure
Hexagonal Close Packed (HCP)
Monoclinic (MON)
Crystal Lattice
BCC-Crystal-Structure-.jpg#100
MON-Crystal-Structure-of-Polonium.jpg#100
Covalent Radius
Not Available
Valence Electron Potential
Not Available
Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
Lattice C/A Ratio
Not Available
Density At Room Temperature
Density When Liquid (at m.p.)
Tensile Strength
Not Available
Viscosity
Not Available
Not Available
Vapor Pressure at 2000 K
Not Available
Shear Modulus
Not Available
Bulk Modulus
Not Available
Poisson Ratio
Not Available
Other Mechanical Properties
Ductile
NA
Magnetic Ordering
Paramagnetic
Nonmagnetic
Electrical Property
Conductor
Conductor
Critical Temperature
Not Available
Not Available
Standard Molar Entropy
Not Available