1 Periodic Table
1.1 Symbol
Cr
1.2 Group Number
1.7 Period Number
1.10 Block
d block
1.11 Element Family
Transition Metal
1.12 CAS Number
1.13 Space Group Name
Im_ 3m
1.14 Space Group Number
3 Facts
3.1 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.
3.2 Sources
Found in Minerals, Mining, Ores of metals, Ores of Minerals
3.3 History
3.3.1 Who Discovered
Louis Nicolas Vauquelin
3.3.2 Discovery
In Between 1797 - 1798
3.4 Abundance
3.4.1 Abundance In Universe
3.4.4 Abundance In Sun
3.4.7 Abundance In Meteorites
3.4.9 Abundance In Earth's Crust
3.4.11 Abundance In Oceans
4.2.4 Abundance In Humans
5 Uses
5.1 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.
5.1.1 Industrial Uses
Automobile Industry, Chemical Industry
5.1.2 Medical Uses
NA
5.1.3 Other Uses
Alloys
5.2 Biological Properties
5.2.1 Toxicity
Highly Toxic
5.2.2 Present in Human Body
✔
✘
60% - Transition Metals Metals have it !
▶
5.2.3 In Blood
6.1.1 In Bone
7 Physical
7.1 Melting Point
7.4 Boiling Point
7.5 Appearance
7.5.1 Physical State
Solid
7.5.2 Color
Silver
7.5.3 Luster
Metallic
7.6 Hardness
7.6.1 Mohs Hardness
7.6.3 Brinell Hardness
7.7.1 Vickers Hardness
7.9 Speed of Sound
8.3 Optical Properties
8.3.1 Refractive Index
8.4.2 Reflectivity
8.5 Allotropes
✔
✘
6% - Transition Metals Metals
▶
8.5.1 α Allotropes
Not Available
8.5.2 β Allotropes
Not Available
8.5.3 γ Allotropes
Not Available
9 Chemical
9.1 Chemical Formula
Cr
9.2 Isotopes
9.2.1 Known Isotopes
9.3 Electronegativity
9.3.1 Pauling Electronegativity
9.3.3 Sanderson Electronegativity
9.3.6 Allred Rochow Electronegativity
9.3.7 Mulliken-Jaffe Electronegativity
9.5.2 Allen Electronegativity
9.6 Electropositivity
9.6.1 Pauling Electropositivity
9.7 Ionization Energies
9.7.1 1st Energy Level
9.7.3 2nd Energy Level
9.7.4 3rd Energy Level
9.7.6 4th Energy Level
9.7.8 5th Energy Level
9.7.10 6th Energy Level
9.7.12 7th Energy level
9.7.14 8th Energy Level
9.7.15 9th Energy Level
9.7.17 10th Energy Level
9.7.19 11th Energy Level
9.7.21 12th Energy Level
9.7.23 13th Energy Level
9.7.25 14th Energy Level
9.7.28 15th Energy Level
9.7.29 16th Energy Level
9.7.32 17th Energy Level
9.7.34 18th Energy Level
9.7.36 19th Energy Level
9.7.39 20th Energy Level
9.7.41 21st Energy Level
9.7.44 22nd Energy Level
9.7.46 23rd Energy Level
9.7.48 24th Energy Level
9.7.50 25th Energy Level
9.7.52 26th Energy Level
9.8.1 27th Energy Level
9.8.2 28th Energy Level
9.8.3 29th Energy Level
9.9.1 30th Energy Level
9.10 Electrochemical Equivalent
10.2 Electron Work Function
10.6 Other Chemical Properties
Anti Corrosion, Chemical Stability, Ionization, Radioactive Isotopes, Solubility
11 Atomic
11.1 Atomic Number
11.2 Electron Configuration
[Ar] 3d5 4s1
11.3 Crystal Structure
Body Centered Cubic (BCC)
11.3.1 Crystal Lattice
11.4 Atom
11.4.1 Number of Protons
11.4.3 Number of Neutrons
11.5.2 Number of Electrons
11.6 Radius of an Atom
11.6.1 Atomic Radius
11.7.1 Covalent Radius
11.8.1 Van der Waals Radius
11.9 Atomic Weight
11.12 Atomic Volume
11.16 Adjacent Atomic Numbers
11.16.1 Previous Element
11.16.2 Next Element
11.17 Valence Electron Potential
12.2 Lattice Constant
12.3 Lattice Angles
π/2, π/2, π/2
12.4 Lattice C/A Ratio
13 Mechanical
13.1 Density
13.1.1 Density At Room Temperature
13.3.1 Density When Liquid (at m.p.)
13.5 Tensile Strength
13.7 Viscosity
13.8 Vapor Pressure
13.8.1 Vapor Pressure at 1000 K
13.8.3 Vapor Pressure at 2000 K
13.9 Elasticity properties
13.9.1 Shear Modulus
13.10.1 Bulk Modulus
14.1.2 Young's Modulus
14.2 Poisson Ratio
14.4 Other Mechanical Properties
NA
15 Magnetic
15.1 Magnetic Characteristics
15.1.1 Specific Gravity
15.1.3 Magnetic Ordering
Antiferromagnetic
15.1.4 Permeability
15.1.5 Susceptibility
15.2 Electrical Properties
15.2.1 Electrical Property
NA
15.2.2 Resistivity
16.1.1 Electrical Conductivity
16.3.1 Electron Affinity
17 Thermal
17.1 Specific Heat
17.3 Molar Heat Capacity
17.5 Thermal Conductivity
17.6 Critical Temperature
17.7 Thermal Expansion
17.9 Enthalpy
17.9.1 Enthalpy of Vaporization
17.9.2 Enthalpy of Fusion
17.9.3 Enthalpy of Atomization
17.10 Standard Molar Entropy