Group Number
Not Available
Element Family
Actinide
Transition Metal
Space Group Name
Pnma
Not Available
Space Group Number
Not Available
Interesting Facts
Not Available
- Seaborgium most stable isotope is Sg and it has 2.1 min of half- life.
- And other isotopes of Seaborgium have half-lives as short as 3 ms.
Sources
Made by Bombarding Uranium with Neutrons, Ores of metals
Synthetically Produced
Who Discovered
Edwin McMillan and Philip H. Abelson
Lawrence Berkeley National Laboratory
Discovery
In 1940
In 1974
Uses & Benefits
- Currently known uses of Neptunium metal are limited to research purpose only.
-
Neptunium’s isotope neptunium-237 is used as a neutron detectors.
- Currently known uses of Seaborgium metal are limited to research purpose only.
Other Uses
Alloys, Nuclear Research, Research Purposes
Research Purposes
Present in Human Body
No
No
Melting Point
Not Available
Boiling Point
Not Available
Physical State
Solid
Solid
Luster
Metallic
Unknown Luster
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
Not Available
Allred Rochow Electronegativity
Not Available
Pauling Electropositivity
Not Available
5th Energy Level
Not Available
6th Energy Level
Not Available
Electrochemical Equivalent
Not Available
Electron Work Function
Not Available
Not Available
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility
NA
Electron Configuration
[Rn] 5f4 6d1 7s2
[Rn] 5f14 6d2 7s2
Crystal Structure
Orthorhombic (ORTH)
Body Centered Cubic (BCC)
Crystal Lattice
ORTH-Crystal-Structure-of-Neptunium.jpg#100
BCC-Crystal-Structure-.jpg#100
Van der Waals Radius
Not Available
Atomic Volume
Not Available
Valence Electron Potential
Not Available
Lattice Constant
Not Available
Lattice Angles
π/2, π/2, π/2
Unknown
Lattice C/A Ratio
Not Available
Not Available
Density At Room Temperature
Tensile Strength
Not Available
Viscosity
Not Available
Not Available
Vapor Pressure at 2000 K
Not Available
Poisson Ratio
Not Available
Not Available
Other Mechanical Properties
Ductile
Unknown
Specific Gravity
Not Available
Magnetic Ordering
Paramagnetic
Unknown
Electrical Property
Conductor
Unknown
Resistivity
Not Available
Electrical Conductivity
Not Available
Specific Heat
Not Available
Molar Heat Capacity
Not Available
Thermal Conductivity
Not Available
Critical Temperature
Not Available
Not Available
Thermal Expansion
Not Available
Not Available
Enthalpy of Fusion
Not Available
Standard Molar Entropy
Not Available
Not Available