Element Family
Alkali
Transition Metal
Space Group Name
Im_ 3m
P63/mmc
Interesting Facts
Not Available
- Hafnium metal is highly reactive, hence not found free in nature.
- Hafnium metal as predicated after Mendeleev finished his periodic table.
Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals
By-product Zirconium Refining
Who Discovered
Robert Bunsen and Gustav Kirchhoff
Dirk Coster and George de Hevesy
Discovery
In 1860
In 1922
Abundance In Earth's Crust
Abundance In Humans
Not Available
Uses & Benefits
- The most common use of cesium metal is as a drilling fluid. It is also used in optical glass manufacturing.
-
In vacuum tubes and radiation monitor equipment this metal is used as a catalyst promoter.
- It has an ability to absorb neutrons and hence it is used to make control rods in nuclear submarines. And this metal is also used in Plasma welding torches.
-
It alloys with iron, titanium and niobium are very useful.
Industrial Uses
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry
Ammunition Industry
Other Uses
Alloys
Alloys, In Nuclear Reactors, Nuclear Research, Research Purposes
Toxicity
Mildly Toxic
Toxic
Present in Human Body
Yes
No
Physical State
Solid
Solid
Vickers Hardness
Not Available
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
Sanderson Electronegativity
Not Available
Allred Rochow Electronegativity
Mulliken-Jaffe Electronegativity
Not Available
Pauling Electropositivity
4th Energy Level
Not Available
Electrochemical Equivalent
Other Chemical Properties
Chemical Stability, Corrosion, Ionization, Radioactive Isotopes, Solubility
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
Electron Configuration
[Xe] 6s1
[Xe] 4f14 5d2 6s2
Crystal Structure
Body Centered Cubic (BCC)
Hexagonal Close Packed (HCP)
Crystal Lattice
BCC-Crystal-Structure-.jpg#100
BCC-Crystal-Structure-.jpg#100
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
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
Poisson Ratio
Not Available
Other Mechanical Properties
Ductile
Ductile, Malleable
Magnetic Ordering
Paramagnetic
Paramagnetic
Electrical Property
Semiconductor
Conductor
Critical Temperature
Not Available