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.
- Holmium metal is very soft and malleable.
- Holmium metal is well known for its corrosion resistivity.
Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals
Found in Minerals, Mining, Ores of Minerals
Who Discovered
Lecoq de Boisbaudran
Marc Delafontaine
Discovery
In 1875
In 1878
Abundance In Sun
~-9999 %
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.
- Holmium metal has an ability to absorb neutrons, so this metal is used in nuclear reactors to keep the chain reactions of elements under control.
-
Alloys of Holmium are used to produce Magnet.
Industrial Uses
Electrical Industry, Electronic Industry
NA
Medical Uses
Surgical Instruments Manufacturing
NA
Other Uses
Alloys
Alloys, Nuclear Research
Toxicity
Non Toxic
Low Toxic
Present in Human Body
Yes
No
Physical State
Solid
Solid
Color
Silvery White
Silvery White
Mohs 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
Mulliken-Jaffe Electronegativity
Not Available
Allen Electronegativity
Not Available
Pauling Electropositivity
Electrochemical Equivalent
Electron Work Function
Not Available
Other Chemical Properties
Ionization, Radioactive Isotopes
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
Electron Configuration
[Ar] 3d10 4s2 4p1
[Xe] 4f11 6s2
Crystal Structure
Orthorhombic (ORTH)
Hexagonal Close Packed (HCP)
Crystal Lattice
ORTH-Crystal-Structure-of-Gallium.jpg#100
HCP-Crystal-Structure-of-Holmium.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
Not Available
Viscosity
Not Available
Not Available
Shear Modulus
Not Available
Bulk Modulus
Not Available
Other Mechanical Properties
NA
Ductile, Malleable, Sectile
Magnetic Ordering
Diamagnetic
Paramagnetic
Electrical Property
Semiconductor
Conductor
Critical Temperature
Not Available
Not Available