1 Periodic Table
1.1 Symbol
1.2 Group Number
1.3 Period Number
1.4 Block
1.5 Element Family
Lanthanide
Transition Metal
1.6 CAS Number
744000853850354
7429905
54386242
1.7 Space Group Name
1.8 Space Group Number
2 Facts
2.1 Interesting Facts
- Neodymium is not found free in nature, hence it is not a native metal.
- Neodymium metal found in minerals like Monazite and Bastnaesite.
- IUPAC allotted a temporary name to Dubnium metal as “ Unnilpentium”.
- In the production of Dubnium, thermal gradient chromatography is used.
2.2 Sources
Found in Minerals, Mining
Produced by Bombarding Am243 with Ne22, Synthetically Produced
2.3 History
2.3.1 Who Discovered
Carl Auer von Welsbach
Joint Institute for Nuclear Research
2.3.2 Discovery
2.4 Abundance
2.4.1 Abundance In Universe
2.4.4 Abundance In Sun
~0.0000003 %~-9999 %
1E-08
0.1
2.4.5 Abundance In Meteorites
2.4.8 Abundance In Earth's Crust
2.4.10 Abundance In Oceans
2.4.11 Abundance In Humans
3 Uses
3.1 Uses & Benefits
- Neodymium-Iron-boron alloy is used to make permanent magnets.
- It is used in microphones, Mp3 player, loudspeakers, mobile phones, etc.
- Currently known uses of Dubnium metal are limited to research purpose only.
3.1.1 Industrial Uses
Aerospace Industry, Electrical Industry, Electronic Industry
NA
3.1.2 Medical Uses
3.1.3 Other Uses
3.2 Biological Properties
3.2.1 Toxicity
3.2.2 Present in Human Body
3.2.3 In Blood
NA0.00 Blood/mg dm-3
0
1970
3.2.4 In Bone
4 Physical
4.1 Melting Point
4.2 Boiling Point
4.3 Appearance
4.3.1 Physical State
4.3.2 Color
4.3.3 Luster
4.4 Hardness
4.4.1 Mohs Hardness
4.4.3 Brinell Hardness
4.4.5 Vickers Hardness
4.5 Speed of Sound
4.6 Optical Properties
4.6.1 Refractive Index
4.6.2 Reflectivity
4.7 Allotropes
4.7.1 α Allotropes
Not Available
Not Available
4.7.2 β Allotropes
Not Available
Not Available
4.7.3 γ Allotropes
Not Available
Not Available
5 Chemical
5.1 Chemical Formula
5.2 Isotopes
5.2.1 Known Isotopes
5.3 Electronegativity
5.3.1 Pauling Electronegativity
5.3.3 Sanderson Electronegativity
5.3.5 Allred Rochow Electronegativity
5.3.6 Mulliken-Jaffe Electronegativity
5.3.8 Allen Electronegativity
5.5 Electropositivity
5.5.1 Pauling Electropositivity
5.7 Ionization Energies
5.7.1 1st Energy Level
533.10 kJ/mol664.80 kJ/mol
375.7
26130
5.7.2 2nd Energy Level
1,040.00 kJ/mol1,546.70 kJ/mol
710.2162
28750
6.1.1 3rd Energy Level
2,130.00 kJ/mol2,378.40 kJ/mol
1600
34230
6.1.2 4th Energy Level
3,900.00 kJ/mol3,298.80 kJ/mol
2780
37066
6.4.2 5th Energy Level
NA4,305.20 kJ/mol
4305.2
97510
6.4.3 6th Energy Level
6.4.5 7th Energy level
6.4.7 8th Energy Level
6.4.8 9th Energy Level
6.5.2 10th Energy Level
6.5.4 11th Energy Level
6.5.5 12th Energy Level
6.5.7 13th Energy Level
6.5.8 14th Energy Level
6.6.1 15th Energy Level
6.6.2 16th Energy Level
6.7.1 17th Energy Level
6.7.2 18th Energy Level
6.7.3 19th Energy Level
6.9.1 20th Energy Level
6.10.1 21st Energy Level
6.10.2 22nd Energy Level
6.12.1 23rd Energy Level
7.1.2 24th Energy Level
7.1.3 25th Energy Level
7.1.5 26th Energy Level
7.2.1 27th Energy Level
7.2.2 28th Energy Level
7.3.1 29th Energy Level
7.4.2 30th Energy Level
7.5 Electrochemical Equivalent
1.79 g/amp-hrNA
0.16812
8.3209
7.7 Electron Work Function
7.8 Other Chemical Properties
Chemical Stability, Corrosion, Flammable, Ionization
Ionization, Radioactive Isotopes, Radioactivity
8 Atomic
8.1 Atomic Number
8.2 Electron Configuration
[Xe] 4f4 6s2
[Rn] 5f14 6d3 7s2
8.3 Crystal Structure
Double Hexagonal Close Packed (DHCP)
Body Centered Cubic (BCC)
8.3.1 Crystal Lattice
8.4 Atom
8.4.1 Number of Protons
8.4.3 Number of Neutrons
8.5.1 Number of Electrons
9.2 Radius of an Atom
9.2.1 Atomic Radius
181.00 pm139.00 pm
112
265
9.2.5 Covalent Radius
201.00 pm149.00 pm
96
260
9.3.3 Van der Waals Radius
9.4 Atomic Weight
144.24 amu268.00 amu
6.94
294
9.5 Atomic Volume
20.60 cm3/molNA
1.39
71.07
9.6 Adjacent Atomic Numbers
9.6.1 Previous Element
9.6.2 Next Element
9.7 Valence Electron Potential
10.2 Lattice Constant
365.80 pmNA
228.58
891.25
10.4 Lattice Angles
10.5 Lattice C/A Ratio
11 Mechanical
11.1 Density
11.1.1 Density At Room Temperature
7.01 g/cm329.30 g/cm3
0.534
40.7
11.2.1 Density When Liquid (at m.p.)
11.4 Tensile Strength
11.5 Viscosity
11.7 Vapor Pressure
11.7.1 Vapor Pressure at 1000 K
11.7.3 Vapor Pressure at 2000 K
101.00 (Pa)NA
2.62E-10
774
11.8 Elasticity properties
11.8.1 Shear Modulus
11.8.3 Bulk Modulus
11.9.1 Young's Modulus
11.10 Poisson Ratio
11.11 Other Mechanical Properties
12 Magnetic
12.1 Magnetic Characteristics
12.1.1 Specific Gravity
12.1.2 Magnetic Ordering
12.1.3 Permeability
12.1.4 Susceptibility
12.2 Electrical Properties
12.2.1 Electrical Property
12.2.2 Resistivity
12.2.3 Electrical Conductivity
0.02 106/cm ΩNA
0.00666
0.63
12.2.4 Electron Affinity
13 Thermal
13.1 Specific Heat
13.2 Molar Heat Capacity
27.45 J/mol·KNA
16.443
62.7
13.3 Thermal Conductivity
13.4 Critical Temperature
13.5 Thermal Expansion
13.6 Enthalpy
13.6.1 Enthalpy of Vaporization
273.00 kJ/molNA
7.32
799.1
13.6.2 Enthalpy of Fusion
13.6.3 Enthalpy of Atomization
13.7 Standard Molar Entropy
71.50 J/mol.KNA
9.5
198.1