1 Periodic Table
1.1 Symbol
1.2 Group Number
1.4 Period Number
2.2 Block
2.3 Element Family
Transition Metal
Lanthanide
2.4 CAS Number
538503547440531
7429905
54386242
2.8 Space Group Name
2.9 Space Group Number
3 Facts
3.1 Interesting Facts
- IUPAC allotted a temporary name to Dubnium metal as “ Unnilpentium”.
- In the production of Dubnium, thermal gradient chromatography is used.
Not Available
3.2 Sources
Produced by Bombarding Am243 with Ne22, Synthetically Produced
Found in Minerals, Mining, Ores of Minerals
3.3 History
3.3.1 Who Discovered
Joint Institute for Nuclear Research
Eugène-Anatole Demarçay
3.3.3 Discovery
3.4 Abundance
3.4.1 Abundance In Universe
3.4.3 Abundance In Sun
~-9999 %~0.00000005 %
1E-08
0.1
3.5.1 Abundance In Meteorites
3.7.1 Abundance In Earth's Crust
4.1.2 Abundance In Oceans
4.5.1 Abundance In Humans
5 Uses
5.1 Uses & Benefits
- Currently known uses of Dubnium metal are limited to research purpose only.
- Europium metals main uses is in the printing of euro banknotes. These notes glow red under UV light.
-
It is used in low energy light bulbs.
5.1.1 Industrial Uses
5.1.2 Medical Uses
5.1.3 Other Uses
5.2 Biological Properties
5.2.1 Toxicity
5.2.2 Present in Human Body
5.2.3 In Blood
0.00 Blood/mg dm-3NA
0
1970
5.3.2 In Bone
6 Physical
6.1 Melting Point
6.5 Boiling Point
6.6 Appearance
6.6.1 Physical State
6.6.2 Color
6.6.3 Luster
6.7 Hardness
6.7.1 Mohs Hardness
6.9.1 Brinell Hardness
7.1.2 Vickers Hardness
7.4 Speed of Sound
7.6 Optical Properties
7.6.1 Refractive Index
7.9.1 Reflectivity
8.2 Allotropes
8.2.1 α Allotropes
Not Available
Not Available
8.2.2 β Allotropes
Not Available
Not Available
8.2.3 γ Allotropes
Not Available
Not Available
9 Chemical
9.1 Chemical Formula
9.2 Isotopes
9.2.1 Known Isotopes
9.5 Electronegativity
9.5.1 Pauling Electronegativity
9.5.2 Sanderson Electronegativity
9.8.1 Allred Rochow Electronegativity
9.9.2 Mulliken-Jaffe Electronegativity
9.9.5 Allen Electronegativity
9.11 Electropositivity
9.11.1 Pauling Electropositivity
9.12 Ionization Energies
9.12.2 1st Energy Level
664.80 kJ/mol547.10 kJ/mol
375.7
26130
9.13.1 2nd Energy Level
1,546.70 kJ/mol1,085.00 kJ/mol
710.2162
28750
10.1.2 3rd Energy Level
2,378.40 kJ/mol2,404.00 kJ/mol
1600
34230
10.2.1 4th Energy Level
3,298.80 kJ/mol4,120.00 kJ/mol
2780
37066
11.1.2 5th Energy Level
4,305.20 kJ/molNA
4305.2
97510
11.2.3 6th Energy Level
11.2.6 7th Energy level
11.2.9 8th Energy Level
11.3.3 9th Energy Level
11.3.4 10th Energy Level
11.3.6 11th Energy Level
11.3.8 12th Energy Level
12.1.1 13th Energy Level
12.1.3 14th Energy Level
12.2.1 15th Energy Level
12.2.2 16th Energy Level
13.1.1 17th Energy Level
13.2.1 18th Energy Level
13.3.1 19th Energy Level
13.3.2 20th Energy Level
13.4.1 21st Energy Level
13.5.1 22nd Energy Level
13.5.2 23rd Energy Level
13.6.1 24th Energy Level
13.7.1 25th Energy Level
13.7.2 26th Energy Level
13.7.3 27th Energy Level
13.9.1 28th Energy Level
13.9.2 29th Energy Level
13.9.3 30th Energy Level
13.10 Electrochemical Equivalent
NA1.89 g/amp-hr
0.16812
8.3209
13.12 Electron Work Function
13.13 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Ionization, Radioactive Isotopes, Solubility
14 Atomic
14.1 Atomic Number
14.2 Electron Configuration
[Rn] 5f14 6d3 7s2
[Xe] 4f7 6s2
14.3 Crystal Structure
Body Centered Cubic (BCC)
Body Centered Cubic (BCC)
14.3.1 Crystal Lattice
14.4 Atom
14.4.1 Number of Protons
14.4.2 Number of Neutrons
14.5.1 Number of Electrons
14.6 Radius of an Atom
14.6.1 Atomic Radius
139.00 pm180.00 pm
112
265
14.7.1 Covalent Radius
149.00 pm198.00 pm
96
260
14.7.2 Van der Waals Radius
14.8 Atomic Weight
268.00 amu151.96 amu
6.94
294
14.9 Atomic Volume
NA28.90 cm3/mol
1.39
71.07
14.10 Adjacent Atomic Numbers
14.10.1 Previous Element
14.10.2 Next Element
14.11 Valence Electron Potential
14.12 Lattice Constant
NA458.10 pm
228.58
891.25
14.13 Lattice Angles
14.14 Lattice C/A Ratio
15 Mechanical
15.1 Density
15.1.1 Density At Room Temperature
29.30 g/cm35.26 g/cm3
0.534
40.7
15.1.2 Density When Liquid (at m.p.)
15.2 Tensile Strength
15.3 Viscosity
15.4 Vapor Pressure
15.4.1 Vapor Pressure at 1000 K
NA19.40 (Pa)
2.47E-11
121
15.4.2 Vapor Pressure at 2000 K
15.5 Elasticity properties
15.5.1 Shear Modulus
15.5.2 Bulk Modulus
15.5.3 Young's Modulus
15.6 Poisson Ratio
15.7 Other Mechanical Properties
16 Magnetic
16.1 Magnetic Characteristics
16.1.1 Specific Gravity
16.1.2 Magnetic Ordering
16.1.3 Permeability
16.1.4 Susceptibility
16.2 Electrical Properties
16.2.1 Electrical Property
16.2.2 Resistivity
16.2.3 Electrical Conductivity
NA0.01 106/cm Ω
0.00666
0.63
16.2.4 Electron Affinity
17 Thermal
17.1 Specific Heat
17.2 Molar Heat Capacity
NA27.66 J/mol·K
16.443
62.7
17.3 Thermal Conductivity
17.4 Critical Temperature
17.5 Thermal Expansion
17.6 Enthalpy
17.6.1 Enthalpy of Vaporization
NA143.50 kJ/mol
7.32
799.1
17.6.2 Enthalpy of Fusion
17.6.3 Enthalpy of Atomization
17.7 Standard Molar Entropy
NA77.80 J/mol.K
9.5
198.1