Element Family
Transition Metal
Transition Metal
Space Group Name
Im_ 3m
P63/mmc
Interesting Facts
- Chromium is highly reactive, hence it is not found free in nature.
- Ores of Chromites mineral are the major source of Chromium metal.
- Almost 90% leather tanning is done with the help of chromium.
- Original name of Technetium was Masurium.
- At the time of its discovery it found in sample of Molybdenum.
Sources
Found in Minerals, Mining, Ores of metals, Ores of Minerals
Made by Bombarding Molybdenum with Deuterons
Who Discovered
Louis Nicolas Vauquelin
Emilio Segrè and Carlo Perriero
Discovery
In Between 1797 - 1798
In 1937
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
Abundance In Humans
Not Available
Uses & Benefits
- It is used to harden the steel and produces a stainless steel and other various alloys.
- It is also used to give proper finish to polished mirrors. Its chromium plates are used in bathroom fittings.
- Technetium is a radioactive metal and hence it is used for medical studies and other research purposes.
Industrial Uses
Automobile Industry, Chemical Industry
NA
Other Uses
Alloys
Alloys, Nuclear Research, Research Purposes
Toxicity
Highly Toxic
Low Toxic
Present in Human Body
Yes
No
Physical State
Solid
Solid
Mohs Hardness
Not Available
Brinell Hardness
Not Available
Vickers Hardness
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
Pauling Electropositivity
4th Energy Level
Not Available
5th Energy Level
Not Available
6th Energy Level
Not Available
7th Energy level
Not Available
8th Energy Level
Not Available
9th Energy Level
Not Available
10th Energy Level
Not Available
11th Energy Level
Not Available
12th Energy Level
Not Available
13th Energy Level
Not Available
14th Energy Level
Not Available
15th Energy Level
Not Available
16th Energy Level
Not Available
17th Energy Level
Not Available
18th Energy Level
Not Available
19th Energy Level
Not Available
20th Energy Level
Not Available
21st Energy Level
Not Available
22nd Energy Level
Not Available
Electrochemical Equivalent
Electron Work Function
Not Available
Other Chemical Properties
Anti Corrosion, Chemical Stability, Ionization, Radioactive Isotopes, Solubility
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility
Electron Configuration
[Ar] 3d5 4s1
[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
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.)
Not Available
Tensile Strength
Not Available
Viscosity
Not Available
Not Available
Vapor Pressure at 1000 K
Not Available
Vapor Pressure at 2000 K
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
Antiferromagnetic
Paramagnetic
Electrical Property
NA
Conductor
Critical Temperature
Not Available
Not Available