Group Number
Not Available
Element Family
Lanthanide
Actinide
Space Group Name
P63/mmc
P121/m1
Interesting Facts
- Holmium metal is very soft and malleable.
- Holmium metal is well known for its corrosion resistivity.
- Plutonium metal if obtain from ores of uranium metal.
- Plutonium metal is very sensitive to the change in atmospheric conditions like temperature and pressure.
Sources
Found in Minerals, Mining, Ores of Minerals
Mining, Ores of metals
Who Discovered
Marc Delafontaine
Glenn T. Seaborg, Arthur Wahl, Joseph W. Kennedy, Edwin McMillan
Discovery
In 1878
In Between 1940 1941
Abundance In Universe
Not Available
Abundance In Meteorites
Not Available
Abundance In Earth's Crust
Not Available
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.
- Plutonium was used in atomic bombs and still it is being used in various weapons and Ammunition industry.
-
It is also used in nuclear power plant as source of energy for space missions.
Industrial Uses
NA
Aerospace Industry, Ammunition Industry
Other Uses
Alloys, Nuclear Research
Alloys
Present in Human Body
No
No
Physical State
Solid
Solid
Color
Silvery White
Silvery White
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
Allred Rochow Electronegativity
Pauling Electropositivity
Electrochemical Equivalent
Electron Work Function
Not Available
Not Available
Other Chemical Properties
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
Corrosion, Ionization, Radioactive Isotopes, Radioactivity
Electron Configuration
[Xe] 4f11 6s2
[Rn] 5f6 7s2
Crystal Structure
Hexagonal Close Packed (HCP)
Monoclinic (MON)
Crystal Lattice
HCP-Crystal-Structure-of-Holmium.jpg#100
MON-Crystal-Structure-of-Plutonium.jpg#100
Valence Electron Potential
Lattice Angles
π/2, π/2, 2 π/3
NA
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
Vapor Pressure at 2000 K
Not Available
Bulk Modulus
Not Available
Other Mechanical Properties
Ductile, Malleable, Sectile
Ductile, Malleable
Magnetic Ordering
Paramagnetic
Paramagnetic
Electrical Property
Conductor
Poor Conductor
Electron Affinity
Not Available
Critical Temperature
Not Available
Not Available
Standard Molar Entropy
Not Available