1 Periodic Table
1.1 Symbol
1.2 Group Number
1.3 Period Number
1.4 Block
1.5 Element Family
Probably Post-Transition
Actinide
1.6 CAS Number
541011437439998
7429905
54386242
1.7 Space Group Name
1.8 Space Group Number
2 Facts
2.1 Interesting Facts
Not Available
Not Available
2.2 Sources
Synthetically Produced
Made by Bombarding Uranium with Neutrons, Ores of metals
2.3 History
2.3.1 Who Discovered
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory
Edwin McMillan and Philip H. Abelson
2.3.2 Discovery
2.4 Abundance
2.4.1 Abundance In Universe
2.4.2 Abundance In Sun
~-9999 %~-9999 %
1E-08
0.1
2.4.3 Abundance In Meteorites
2.4.4 Abundance In Earth's Crust
2.4.5 Abundance In Oceans
1.2.1 Abundance In Humans
2 Uses
2.1 Uses & Benefits
- Currently known uses of Ununseptium metal are limited to research purpose only.
- Currently known uses of Neptunium metal are limited to research purpose only.
-
Neptunium’s isotope neptunium-237 is used as a neutron detectors.
2.1.1 Industrial Uses
2.1.2 Medical Uses
2.1.3 Other Uses
Research Purposes
Alloys, Nuclear Research, Research Purposes
2.2 Biological Properties
2.2.1 Toxicity
2.2.2 Present in Human Body
2.2.3 In Blood
NA0.00 Blood/mg dm-3
0
1970
2.5.1 In Bone
3 Physical
3.1 Melting Point
400.00 °C640.00 °C
27
3410
3.2 Boiling Point
610.00 °C3,902.00 °C
147
5660
4.5 Appearance
4.5.1 Physical State
4.5.2 Color
4.5.3 Luster
4.6 Hardness
4.6.1 Mohs Hardness
4.6.3 Brinell Hardness
4.6.5 Vickers Hardness
4.7 Speed of Sound
4.8 Optical Properties
4.8.1 Refractive Index
5.2.4 Reflectivity
5.3 Allotropes
5.3.1 α Allotropes
Not Available
Not Available
5.3.2 β Allotropes
Not Available
Not Available
5.3.3 γ Allotropes
Not Available
Not Available
6 Chemical
6.1 Chemical Formula
6.2 Isotopes
6.2.1 Known Isotopes
7.2 Electronegativity
7.2.1 Pauling Electronegativity
7.2.2 Sanderson Electronegativity
7.3.1 Allred Rochow Electronegativity
7.5.2 Mulliken-Jaffe Electronegativity
7.5.4 Allen Electronegativity
7.6 Electropositivity
7.6.1 Pauling Electropositivity
7.8 Ionization Energies
7.8.1 1st Energy Level
742.90 kJ/mol604.50 kJ/mol
375.7
26130
7.9.2 2nd Energy Level
1,785.00 kJ/mol1,128.00 kJ/mol
710.2162
28750
7.9.4 3rd Energy Level
NA1,997.00 kJ/mol
1600
34230
8.2.2 4th Energy Level
NA3,242.00 kJ/mol
2780
37066
8.3.2 5th Energy Level
8.3.3 6th Energy Level
8.3.5 7th Energy level
8.3.7 8th Energy Level
8.3.9 9th Energy Level
8.3.11 10th Energy Level
8.3.12 11th Energy Level
8.5.2 12th Energy Level
8.5.4 13th Energy Level
8.5.6 14th Energy Level
8.5.8 15th Energy Level
8.5.10 16th Energy Level
8.5.12 17th Energy Level
8.5.14 18th Energy Level
8.5.16 19th Energy Level
8.5.18 20th Energy Level
8.5.19 21st Energy Level
8.5.21 22nd Energy Level
8.5.23 23rd Energy Level
8.5.24 24th Energy Level
8.5.26 25th Energy Level
8.5.28 26th Energy Level
8.5.29 27th Energy Level
8.5.31 28th Energy Level
8.5.33 29th Energy Level
8.5.34 30th Energy Level
8.6 Electrochemical Equivalent
NA1.77 g/amp-hr
0.16812
8.3209
8.7 Electron Work Function
8.8 Other Chemical Properties
Chemical Stability, Ionization
Ionization, Radioactive Isotopes, Radioactivity, Solubility
9 Atomic
9.1 Atomic Number
9.2 Electron Configuration
[Rn] 5f14 6d10 7s2 7p5
[Rn] 5f4 6d1 7s2
9.3 Crystal Structure
Not Known
Orthorhombic (ORTH)
9.3.1 Crystal Lattice
9.4 Atom
9.4.1 Number of Protons
9.4.3 Number of Neutrons
9.4.6 Number of Electrons
9.5 Radius of an Atom
9.5.1 Atomic Radius
9.5.3 Covalent Radius
9.5.5 Van der Waals Radius
9.6 Atomic Weight
294.00 amu237.00 amu
6.94
294
9.7 Atomic Volume
NA11.62 cm3/mol
1.39
71.07
9.9 Adjacent Atomic Numbers
9.9.1 Previous Element
9.9.2 Next Element
9.10 Valence Electron Potential
9.12 Lattice Constant
NA666.30 pm
228.58
891.25
10.2 Lattice Angles
10.3 Lattice C/A Ratio
11 Mechanical
11.1 Density
11.1.1 Density At Room Temperature
7.10 g/cm319.38 g/cm3
0.534
40.7
11.4.2 Density When Liquid (at m.p.)
11.5 Tensile Strength
11.6 Viscosity
11.8 Vapor Pressure
11.8.1 Vapor Pressure at 1000 K
11.8.3 Vapor Pressure at 2000 K
11.9 Elasticity properties
11.9.1 Shear Modulus
11.10.1 Bulk Modulus
11.11.1 Young's Modulus
11.14 Poisson Ratio
11.16 Other Mechanical Properties
12 Magnetic
12.1 Magnetic Characteristics
12.1.1 Specific Gravity
13.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
13.1.3 Permeability
13.1.5 Susceptibility
13.2 Electrical Properties
13.2.1 Electrical Property
13.2.2 Resistivity
13.4.1 Electrical Conductivity
NA0.01 106/cm Ω
0.00666
0.63
13.5.2 Electron Affinity
14 Thermal
14.1 Specific Heat
14.3 Molar Heat Capacity
NA29.46 J/mol·K
16.443
62.7
14.4 Thermal Conductivity
14.5 Critical Temperature
14.7 Thermal Expansion
15.2 Enthalpy
15.2.1 Enthalpy of Vaporization
15.2.5 Enthalpy of Fusion
15.3.3 Enthalpy of Atomization
15.4 Standard Molar Entropy