Group Number
Not Available
Element Family
Lanthanide
Transition Metal
Space Group Name
P63/mmc
Fm_ 3m
Interesting Facts
- Holmium metal is very soft and malleable.
- Holmium metal is well known for its corrosion resistivity.
- Platinum is the rarest metal from the Precious metal categories..
- Commercially Platinum is produced as a byproduct in ores of nickel.
Sources
Found in Minerals, Mining, Ores of Minerals
Mining, Ores of metals, Ores of Minerals
Who Discovered
Marc Delafontaine
Antonio de Ulloa
Discovery
In 1878
In 1735
Abundance In Sun
~-9999 %
Abundance In Earth's Crust
Abundance In Oceans
Not Available
Uses & Benefits
- 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.
- Platinum metal is mainly used in jewellery.
-
Platinum is used as an industrial catalyst in production of nitric acid, silicone and benzene.
Industrial Uses
NA
Aerospace Industry, Chemical Industry
Medical Uses
NA
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing
Other Uses
Alloys, Nuclear Research
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues
Toxicity
Low Toxic
Non Toxic
Present in Human Body
No
No
Physical State
Solid
Solid
Color
Silvery White
Silvery White
Mohs Hardness
Not Available
Reflectivity
Not Available
α Allotropes
Not Available
Not Available
β Allotropes
Not Available
Not Available
γ Allotropes
Not Available
Not Available
Pauling Electronegativity
Allred Rochow Electronegativity
Allen Electronegativity
Not Available
Pauling Electropositivity
3rd Energy Level
Not Available
4th Energy Level
Not Available
Electrochemical Equivalent
Electron Work Function
Not Available
Other Chemical Properties
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
Chemical Stability, Anti Corrosion, Ionization
Electron Configuration
[Xe] 4f11 6s2
[Xe] 4f14 5d9 6s1
Crystal Structure
Hexagonal Close Packed (HCP)
Face Centered Cubic (FCC)
Crystal Lattice
HCP-Crystal-Structure-of-Holmium.jpg#100
FCC-Crystal-Structure-of-Platinum.jpg#100
Valence Electron Potential
Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
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 1000 K
Not Available
Vapor Pressure at 2000 K
Not Available
Other Mechanical Properties
Ductile, Malleable, Sectile
Ductile, Malleable
Magnetic Ordering
Paramagnetic
Paramagnetic
Permeability
Not Available
Electrical Property
Conductor
Conductor
Critical Temperature
Not Available
Not Available