1 Periodic Table
1.1 Symbol
1.2 Group Number
1.4 Period Number
1.5 Block
1.6 Element Family
Transition Metal
Transition Metal
1.7 CAS Number
5403714853850354
7429905
54386242
1.9 Space Group Name
Not Available
Not Available
1.10 Space Group Number
2 Facts
2.1 Interesting Facts
- Bohrium metal is also known as Unnilseptium (Uns) and Nielsbohrium (Ns).
- 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, Synthetically Produced
Produced by Bombarding Am243 with Ne22, Synthetically Produced
2.3 History
2.3.1 Who Discovered
Gesellschaft für Schwerionenforschung
Joint Institute for Nuclear Research
2.3.2 Discovery
2.4 Abundance
2.4.1 Abundance In Universe
2.7.1 Abundance In Sun
~-9999 %~-9999 %
1E-08
0.1
3.4.1 Abundance In Meteorites
3.7.2 Abundance In Earth's Crust
4.5.1 Abundance In Oceans
4.6.1 Abundance In Humans
5 Uses
5.1 Uses & Benefits
- Currently known uses of Bohrium metal are limited to research purpose only.
- Currently known uses of Dubnium metal are limited to research purpose only.
5.1.1 Industrial Uses
5.1.2 Medical Uses
5.1.3 Other Uses
Research Purposes
Research Purposes
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-30.00 Blood/mg dm-3
0
1970
5.3.2 In Bone
0.00 p.p.m.0.00 p.p.m.
0
170000
6 Physical
6.1 Melting Point
6.2 Boiling Point
7.3 Appearance
7.3.1 Physical State
7.4.1 Color
7.4.2 Luster
Unknown Luster
Unknown Luster
7.5 Hardness
7.5.1 Mohs Hardness
9.1.2 Brinell Hardness
9.2.1 Vickers Hardness
9.6 Speed of Sound
9.7 Optical Properties
9.7.1 Refractive Index
9.7.2 Reflectivity
9.8 Allotropes
9.8.1 α Allotropes
Not Available
Not Available
9.8.2 β Allotropes
Not Available
Not Available
9.8.3 γ Allotropes
Not Available
Not Available
10 Chemical
10.1 Chemical Formula
10.2 Isotopes
10.2.1 Known Isotopes
11.3 Electronegativity
11.3.1 Pauling Electronegativity
11.5.2 Sanderson Electronegativity
11.7.1 Allred Rochow Electronegativity
12.3.1 Mulliken-Jaffe Electronegativity
12.5.1 Allen Electronegativity
12.7 Electropositivity
12.7.1 Pauling Electropositivity
12.8 Ionization Energies
12.8.1 1st Energy Level
742.90 kJ/mol664.80 kJ/mol
375.7
26130
12.8.4 2nd Energy Level
1,688.50 kJ/mol1,546.70 kJ/mol
710.2162
28750
12.8.7 3rd Energy Level
2,566.50 kJ/mol2,378.40 kJ/mol
1600
34230
12.10.2 4th Energy Level
3,598.90 kJ/mol3,298.80 kJ/mol
2780
37066
12.11.2 5th Energy Level
4,727.80 kJ/mol4,305.20 kJ/mol
4305.2
97510
12.11.3 6th Energy Level
5,991.70 kJ/molNA
5715.8
105800
12.11.6 7th Energy level
7,226.80 kJ/molNA
7226.8
114300
12.11.7 8th Energy Level
12.11.9 9th Energy Level
12.11.11 10th Energy Level
12.11.13 11th Energy Level
12.11.15 12th Energy Level
12.11.17 13th Energy Level
12.11.19 14th Energy Level
12.11.21 15th Energy Level
12.11.22 16th Energy Level
12.11.24 17th Energy Level
12.11.25 18th Energy Level
12.11.27 19th Energy Level
12.11.29 20th Energy Level
12.11.30 21st Energy Level
12.11.32 22nd Energy Level
13.1.2 23rd Energy Level
13.1.4 24th Energy Level
13.1.8 25th Energy Level
13.1.10 26th Energy Level
13.1.12 27th Energy Level
13.2.3 28th Energy Level
13.2.5 29th Energy Level
13.2.8 30th Energy Level
13.3 Electrochemical Equivalent
13.4 Electron Work Function
1.3 Other Chemical Properties
Ionization, Radioactive Isotopes
Ionization, Radioactive Isotopes, Radioactivity
2 Atomic
2.1 Atomic Number
3.2 Electron Configuration
[Rn] 5f14 6d5 7s2
[Rn] 5f14 6d3 7s2
3.3 Crystal Structure
Hexagonal Close Packed (HCP)
Body Centered Cubic (BCC)
3.3.1 Crystal Lattice
3.4 Atom
3.4.1 Number of Protons
3.7.2 Number of Neutrons
3.9.2 Number of Electrons
4.5 Radius of an Atom
4.5.1 Atomic Radius
128.00 pm139.00 pm
112
265
4.6.1 Covalent Radius
141.00 pm149.00 pm
96
260
4.7.2 Van der Waals Radius
4.10 Atomic Weight
270.00 amu268.00 amu
6.94
294
4.11 Atomic Volume
5.3 Adjacent Atomic Numbers
5.3.1 Previous Element
5.3.2 Next Element
5.4 Valence Electron Potential
6.3 Lattice Constant
6.4 Lattice Angles
6.5 Lattice C/A Ratio
7 Mechanical
7.1 Density
7.1.1 Density At Room Temperature
37.10 g/cm329.30 g/cm3
0.534
40.7
1.3.1 Density When Liquid (at m.p.)
1.7 Tensile Strength
1.9 Viscosity
1.13 Vapor Pressure
1.13.1 Vapor Pressure at 1000 K
1.16.1 Vapor Pressure at 2000 K
1.18 Elasticity properties
1.18.1 Shear Modulus
2.4.2 Bulk Modulus
2.7.3 Young's Modulus
3.4 Poisson Ratio
1.6 Other Mechanical Properties
2 Magnetic
2.1 Magnetic Characteristics
2.1.1 Specific Gravity
3.2.1 Magnetic Ordering
3.2.2 Permeability
1.2.1 Susceptibility
1.6 Electrical Properties
1.6.1 Electrical Property
1.6.2 Resistivity
2.5.1 Electrical Conductivity
3.7.2 Electron Affinity
6 Thermal
6.1 Specific Heat
6.5 Molar Heat Capacity
6.6 Thermal Conductivity
6.10 Critical Temperature
6.12 Thermal Expansion
8.2 Enthalpy
8.2.1 Enthalpy of Vaporization
9.2.4 Enthalpy of Fusion
11.1.1 Enthalpy of Atomization
2.4 Standard Molar Entropy