Group Number
Not Available
Element Family
Actinide
Post-Transition
Space Group Name
Pnma
Fm_ 3m
Interesting Facts
Not Available
- Galena mineral contains almost 87% of Lead metal in it, Galena is sulfide mineral.
- The best available source of Lead metal today is by recycling automobile batteries.
Sources
Made by Bombarding Uranium with Neutrons, Ores of metals
Earth's crust, Found in Minerals, Mining, Ores of metals, Ores of Minerals
Who Discovered
Edwin McMillan and Philip H. Abelson
Unknown
Discovery
In 1940
In Middle Easterns (7000 BCE)
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
- Currently known uses of Neptunium metal are limited to research purpose only.
-
Neptunium’s isotope neptunium-237 is used as a neutron detectors.
- It is also used in insecticides, hair dyes and as an anti-knocking additive for petrol. But all these are banned by the government as Lead metal is known for detrimental to health.
Industrial Uses
NA
Chemical Industry, Electrical Industry, Electronic Industry
Medical Uses
NA
Surgical Instruments Manufacturing
Other Uses
Alloys, Nuclear Research, Research Purposes
Alloys
Present in Human Body
No
Yes
Physical State
Solid
Solid
Mohs Hardness
Not Available
Brinell 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
Sanderson Electronegativity
Not Available
Allred Rochow Electronegativity
Mulliken-Jaffe Electronegativity
Not Available
Allen Electronegativity
Not Available
Pauling Electropositivity
5th Energy Level
Not Available
Electrochemical Equivalent
Electron Work Function
Not Available
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility
Anti Corrosion, Ionization, Radioactive Isotopes
Electron Configuration
[Rn] 5f4 6d1 7s2
[Xe] 4f14 5d10 6s2 6p2
Crystal Structure
Orthorhombic (ORTH)
Face Centered Cubic (FCC)
Crystal Lattice
ORTH-Crystal-Structure-of-Neptunium.jpg#100
FCC-Crystal-Structure-of-Lead.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
Viscosity
Not Available
Not Available
Vapor Pressure at 1000 K
Not Available
Vapor Pressure at 2000 K
Not Available
Shear Modulus
Not Available
Bulk Modulus
Not Available
Young's Modulus
Not Available
Poisson Ratio
Not Available
Other Mechanical Properties
Ductile
Ductile, Malleable
Magnetic Ordering
Paramagnetic
Diamagnetic
Electrical Property
Conductor
Poor Conductor
Electron Affinity
Not Available
Critical Temperature
Not Available
Not Available
Thermal Expansion
Not Available
Enthalpy of Vaporization
Not Available
Enthalpy of Atomization
Not Available
Standard Molar Entropy
Not Available