Group Number
Not Available
Element Family
Post-Transition
Lanthanide
Space Group Name
Cmca
P63/mmc
Interesting Facts
- A gram of Gallium metal can be bought for only three dollars.
- Gallium metal found in ores of following things Coal, Bauxite, Diaspore, Sphalerite, Germanite and Zinc.
- Cerium is a rare earth metal but still it is not rare at all.
- It’s non-toxic compound Cerium sulfide has a rich red color and it is used as a pigment.
- Cerium metal is also used in Flat screen TVs, light bulb, floodlights, etc.
Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals
Found in Minerals, Mining, Ores of Minerals
Who Discovered
Lecoq de Boisbaudran
Martin Heinrich Klaproth, Jöns Jakob Berzelius, Wilhelm Hisinger
Discovery
In 1875
In 1803
Abundance In Earth's Crust
Uses & Benefits
- Gallium arsenide is a very important component of many semiconductors and led manufacturing.
- Gallium nitride is also know as a semiconductor and it is used in Blu-ray technology, mobile smartphones and LED.
- It is used to include flints for cigarette lighters.
- Its compound Cerium (Ill) Oxide is used as a catalyst; it is put inside the walls of the oven as it prevents from the buildup of cooking residues.
Industrial Uses
Electrical Industry, Electronic Industry
Chemical Industry
Medical Uses
Surgical Instruments Manufacturing
Medical Research
Toxicity
Non Toxic
Moderately Toxic
Present in Human Body
Yes
Yes
Physical State
Solid
Solid
Color
Silvery White
Silvery White
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
Mulliken-Jaffe Electronegativity
Not Available
Allen Electronegativity
Not Available
Pauling Electropositivity
5th Energy Level
Not Available
6th Energy Level
Not Available
Electrochemical Equivalent
Other Chemical Properties
Ionization, Radioactive Isotopes
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
Electron Configuration
[Ar] 3d10 4s2 4p1
[Xe] 4f1 5d1 6s2
Crystal Structure
Orthorhombic (ORTH)
Double Hexagonal Close Packed (DHCP)
Crystal Lattice
ORTH-Crystal-Structure-of-Gallium.jpg#100
DHCP-Crystal-Structure-of-Cerium.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
Not Available
Density At Room Temperature
Density When Liquid (at m.p.)
Tensile Strength
Not Available
Not Available
Viscosity
Not Available
Not Available
Vapor Pressure at 2000 K
Not Available
Shear Modulus
Not Available
Bulk Modulus
Not Available
Other Mechanical Properties
NA
Ductile, Malleable
Magnetic Ordering
Diamagnetic
Paramagnetic
Electrical Property
Semiconductor
Conductor
Critical Temperature
Not Available
Not Available