Symbol
Sg
  
Nd
  
Period Number
7
  
6
  
Block
d block
  
f block
  
Element Family
Transition Metal
  
Lanthanide
  
Space Group Name
Not Available
  
P63/mmc
  
Space Group Number
Not Available
  
Interesting Facts
- 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.
  
- Neodymium is not found free in nature, hence it is not a native metal.
- Neodymium metal found in minerals like Monazite and Bastnaesite.
  
Sources
Synthetically Produced
  
Found in Minerals, Mining
  
History
  
  
Who Discovered
Lawrence Berkeley National Laboratory
  
Carl Auer von Welsbach
  
Discovery
In 1974
  
In 1885
  
Abundance
  
  
Abundance In Universe
Not Available
  
Abundance In Sun
~-9999 %
  
~0.0000003 %
  
24
Abundance In Meteorites
Not Available
  
Abundance In Earth's Crust
Not Available
  
Abundance In Oceans
Not Available
  
Uses & Benefits
- Currently known uses of Seaborgium metal are limited to research purpose only.
  
- Neodymium-Iron-boron alloy is used to make permanent magnets.
- It is used in microphones, Mp3 player, loudspeakers, mobile phones, etc.
  
Industrial Uses
NA
  
Aerospace Industry, Electrical Industry, Electronic Industry
  
Medical Uses
NA
  
NA
  
Other Uses
Research Purposes
  
Alloys
  
Biological Properties
  
  
Toxicity
Unknown
  
Non Toxic
  
Present in Human Body
No
  
No
  
Melting Point
Not Available
  
1,010.00 °C
  
99+
Boiling Point
Not Available
  
3,127.00 °C
  
28
Appearance
  
  
Physical State
Solid
  
Solid
  
Color
Unknown
  
Silvery White
  
Luster
Unknown Luster
  
Metallic
  
Hardness
  
  
Brinell Hardness
Not Available
  
Vickers Hardness
Not Available
  
Speed of Sound
Not Available
  
2,330.00 m/s
  
38
Optical Properties
  
  
Allotropes
No
  
No
  
α Allotropes
Not Available
  
Not Available
  
β Allotropes
Not Available
  
Not Available
  
γ Allotropes
Not Available
  
Not Available
  
Chemical Formula
Sg
  
Nd
  
Isotopes
  
  
Electronegativity
  
  
Pauling Electronegativity
Not Available
  
Allred Rochow Electronegativity
Not Available
  
Electropositivity
  
  
Pauling Electropositivity
Not Available
  
Ionization Energies
  
  
1st Energy Level
757.40 kJ/mol
  
21
533.10 kJ/mol
  
99+
2nd Energy Level
1,732.90 kJ/mol
  
28
1,040.00 kJ/mol
  
99+
3rd Energy Level
2,483.50 kJ/mol
  
99+
2,130.00 kJ/mol
  
99+
4th Energy Level
3,415.60 kJ/mol
  
99+
3,900.00 kJ/mol
  
99+
5th Energy Level
4,561.80 kJ/mol
  
38
Not Available
  
6th Energy Level
5,715.80 kJ/mol
  
25
Not Available
  
Electrochemical Equivalent
Not Available
  
1.79 g/amp-hr
  
37
Electron Work Function
Not Available
  
Other Chemical Properties
NA
  
Chemical Stability, Corrosion, Flammable, Ionization
  
Electron Configuration
[Rn] 5f14 6d2 7s2
  
[Xe] 4f4 6s2
  
Crystal Structure
Body Centered Cubic (BCC)
  
Double Hexagonal Close Packed (DHCP)
  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100
  
DHCP-Crystal-Structure-of-Neodymium.jpg#100
  
Atom
  
  
Radius of an Atom
  
  
Van der Waals Radius
Not Available
  
Atomic Weight
144.24 amu
  
99+
Atomic Volume
Not Available
  
20.60 cm3/mol
  
18
Adjacent Atomic Numbers
  
  
Valence Electron Potential
Not Available
  
43.40 (-eV)
  
99+
Lattice Constant
Not Available
  
Lattice Angles
Unknown
  
π/2, π/2, 2 π/3
  
Lattice C/A Ratio
Not Available
  
Density
  
  
Density At Room Temperature
7.01 g/cm3
  
99+
Density When Liquid (at m.p.)
Not Available
  
Tensile Strength
Not Available
  
Not Available
  
Viscosity
Not Available
  
Not Available
  
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available
  
Vapor Pressure at 2000 K
Not Available
  
Elasticity properties
  
  
Shear Modulus
Not Available
  
Bulk Modulus
Not Available
  
Young's Modulus
Not Available
  
Poisson Ratio
Not Available
  
Other Mechanical Properties
Unknown
  
NA
  
Magnetic Characteristics
  
  
Specific Gravity
Not Available
  
Magnetic Ordering
Unknown
  
Paramagnetic
  
Electrical Properties
  
  
Electrical Property
Unknown
  
NA
  
Resistivity
Not Available
  
Electrical Conductivity
Not Available
  
0.02 10
6/cm Ω
  
99+
Electron Affinity
Not Available
  
50.00 kJ/mol
  
21
Specific Heat
Not Available
  
0.19 J/(kg K)
  
32
Molar Heat Capacity
Not Available
  
27.45 J/mol·K
  
17
Thermal Conductivity
Not Available
  
16.50 W/m·K
  
99+
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
Not Available
  
9.60 µm/(m·K)
  
99+
Enthalpy
  
  
Enthalpy of Vaporization
Not Available
  
273.00 kJ/mol
  
34
Enthalpy of Fusion
Not Available
  
7.14 kJ/mol
  
99+
Enthalpy of Atomization
Not Available
  
322.00 kJ/mol
  
32
Standard Molar Entropy
Not Available
  
71.50 J/mol.K
  
13