Group Number
Not Available
Element Family
Lanthanide
Alkali
Space Group Name
P63/mmc
Im_ 3m
Interesting Facts
- Lanthanum metal is highly malleable, ductile and sectile.
- If exposed to air Lanthanum metal oxidizes rapidly.
- Rubidium metal is 16th most common element found in the earth crust.
- Rubidium metal also found in minerals as well as seawater.
Sources
Found in Minerals, Mining, Ores of Minerals
Obtained from Lithium Production.
Who Discovered
Carl Gustaf Mosander
Robert Bunsen and Gustav Kirchhoff
Discovery
In 1838
In 1861
Abundance In Earth's Crust
Abundance In Humans
Not Available
Uses & Benefits
- It has no commercial uses, but its alloys are in high demand. Lanthanum and Nickel alloy is used for the hydrogen gas storage.
- The best-known use for mischmetal alloy of Lanthanum is; as a ‘flints’ for cigarette lighters.
- Rubidium's main application is in the glass manufacturing.
- Rubidium can very easily get ionized and hence it is used for ion engines, but it is still less efficient than that of Caesium.
Industrial Uses
Electrical Industry, Electronic Industry
NA
Other Uses
Alloys, Mirror Manufacturing
Alloys, Research Purposes
Toxicity
Low Toxic
Non Toxic
Present in Human Body
Yes
Yes
Physical State
Solid
Solid
Color
Silvery White
Grayish 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
6th Energy Level
Not Available
7th Energy level
Not Available
8th Energy Level
Not Available
9th Energy Level
Not Available
10th Energy Level
Not Available
Electrochemical Equivalent
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility
Corrosion, Ionization, Radioactive Isotopes, Radioactivity
Electron Configuration
[Xe] 5d2 6s2
[Kr] 5s1
Crystal Structure
Double Hexagonal Close Packed (DHCP)
Body Centered Cubic (BCC)
Crystal Lattice
DHCP-Crystal-Structure-of-Lanthanum.jpg#100
BCC-Crystal-Structure-.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
Not Available
Viscosity
Not Available
Not Available
Vapor Pressure at 2000 K
Not Available
Shear Modulus
Not Available
Poisson Ratio
Not Available
Other Mechanical Properties
Ductile
Ductile
Magnetic Ordering
Paramagnetic
Paramagnetic
Electrical Property
Conductor
Conductor
Critical Temperature
Not Available