Group Number
Not Available
Element Family
Alkali
Actinide
Space Group Name
Im_ 3m
Pnma
Interesting Facts
Not Available
Not Available
Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals
Made by Bombarding Uranium with Neutrons, Ores of metals
Who Discovered
Robert Bunsen and Gustav Kirchhoff
Edwin McMillan and Philip H. Abelson
Discovery
In 1860
In 1940
Abundance In Universe
Not Available
Abundance In Sun
~-9999 %
Abundance In Meteorites
Not Available
Abundance In Earth's Crust
Not Available
Abundance In Oceans
Not Available
Abundance In Humans
Not Available
Uses & Benefits
- The most common use of cesium metal is as a drilling fluid. It is also used in optical glass manufacturing.
-
In vacuum tubes and radiation monitor equipment this metal is used as a catalyst promoter.
- Currently known uses of Neptunium metal are limited to research purpose only.
-
Neptunium’s isotope neptunium-237 is used as a neutron detectors.
Industrial Uses
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry
NA
Other Uses
Alloys
Alloys, Nuclear Research, Research Purposes
Toxicity
Mildly Toxic
Toxic
Present in Human Body
Yes
No
Physical State
Solid
Solid
Color
Silvery Gold
Silver
Mohs Hardness
Not Available
Brinell Hardness
Not Available
Speed of Sound
Not Available
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
4th Energy Level
Not Available
Electrochemical Equivalent
Electron Work Function
Not Available
Other Chemical Properties
Chemical Stability, Corrosion, Ionization, Radioactive Isotopes, Solubility
Ionization, Radioactive Isotopes, Radioactivity, Solubility
Electron Configuration
[Xe] 6s1
[Rn] 5f4 6d1 7s2
Crystal Structure
Body Centered Cubic (BCC)
Orthorhombic (ORTH)
Crystal Lattice
BCC-Crystal-Structure-.jpg#100
ORTH-Crystal-Structure-of-Neptunium.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
Vapor Pressure at 2000 K
Not Available
Bulk Modulus
Not Available
Young's Modulus
Not Available
Poisson Ratio
Not Available
Not Available
Other Mechanical Properties
Ductile
Ductile
Magnetic Ordering
Paramagnetic
Paramagnetic
Electrical Property
Semiconductor
Conductor
Electron Affinity
Not Available
Critical Temperature
Not Available
Thermal Expansion
Not Available
Enthalpy of Vaporization
Not Available
Enthalpy of Atomization
Not Available
Standard Molar Entropy
Not Available