Group Number
Not Available
Not Available
Element Family
Lanthanide
Actinide
Space Group Name
Fm_ 3m
I4/mmm
Interesting Facts
- Ytterbium metal oxidizes rapidly if exposed to air.
- Ytterbium metal can dissolve quickly in Mineral acid.
- Protactinium metal has 29 isotopes.
- Isotopes of Protactinium-231 used in nuclear weapon.
Sources
Found in Minerals, Mining, Ores of Minerals
Found in Uranium Ores, Mining, Ores of metals
Who Discovered
Jean Charles Galissard de Marignac
William Crookes
Discovery
In 1878
In 1900
Abundance In Universe
Not Available
Abundance In Sun
~-9999 %
Abundance In Meteorites
Not Available
Abundance In Earth's Crust
Uses & Benefits
- Ytterbium metal is used in memory devices and tuneable laser.
-
It is also used as industrial catalyst as the other catalysts are too toxic and polluting.
- Currently known uses of Protactinium metal are limited to research purpose only.
Industrial Uses
Automobile Industry, Chemical Industry
NA
Toxicity
Highly Toxic
Highly Toxic
Present in Human Body
No
No
Physical State
Solid
Solid
Color
Silvery White
Silver
Brinell Hardness
Not Available
Vickers Hardness
Not Available
Speed of Sound
Not Available
α Allotropes
Not Available
Not Available
β Allotropes
Not Available
Not Available
γ Allotropes
Not Available
Not Available
Pauling Electronegativity
Not Available
Allred Rochow Electronegativity
Pauling Electropositivity
Not Available
Electrochemical Equivalent
Electron Work Function
Not Available
Not Available
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility
Ionization, Radioactive Isotopes, Radioactivity
Electron Configuration
[Xe] 4f14 6s2
[Rn] 5f2 6d1 7s2
Crystal Structure
Face Centered Cubic (FCC)
Tetragonal (TETR)
Crystal Lattice
FCC-Crystal-Structure-of-Ytterbium.jpg#100
TETR-Crystal-Structure-of-Protactinium.jpg#100
Valence Electron Potential
Lattice Angles
π/2, π/2, π/2
π/2, π/2, π/2
Lattice C/A Ratio
Not Available
Not Available
Density At Room Temperature
Density When Liquid (at m.p.)
Not Available
Tensile Strength
Not Available
Viscosity
Not Available
Not Available
Shear Modulus
Not Available
Bulk Modulus
Not Available
Young's Modulus
Not Available
Poisson Ratio
Not Available
Other Mechanical Properties
Ductile, Malleable
Unknown
Magnetic Ordering
Paramagnetic
Paramagnetic
Electrical Property
Conductor
Conductor
Electron Affinity
Not Available
Molar Heat Capacity
Not Available
Critical Temperature
Not Available
Enthalpy of Vaporization
Not Available
Enthalpy of Atomization
Not Available