1 Periodic Table
1.1 Symbol
Db
1.2 Group Number
1.4 Period Number
1.6 Block
d block
1.7 Element Family
Transition Metal
1.8 CAS Number
1.9 Space Group Name
Not Available
1.10 Space Group Number
2 Facts
2.1 Interesting Facts
- IUPAC allotted a temporary name to Dubnium metal as “ Unnilpentium”.
- In the production of Dubnium, thermal gradient chromatography is used.
2.2 Sources
Produced by Bombarding Am243 with Ne22, Synthetically Produced
2.3 History
2.3.1 Who Discovered
Joint Institute for Nuclear Research
2.3.2 Discovery
In 1968
2.4 Abundance
2.4.1 Abundance In Universe
2.4.3 Abundance In Sun
2.5.1 Abundance In Meteorites
2.5.2 Abundance In Earth's Crust
2.5.3 Abundance In Oceans
2.5.4 Abundance In Humans
3 Uses
3.1 Uses & Benefits
- Currently known uses of Dubnium metal are limited to research purpose only.
3.1.1 Industrial Uses
NA
3.1.2 Medical Uses
NA
3.1.3 Other Uses
Research Purposes
3.2 Biological Properties
3.2.1 Toxicity
Unknown
3.2.2 Present in Human Body
✔
✘
60% - Transition Metals Metals have it !
▶
3.2.3 In Blood
3.2.4 In Bone
4 Physical
4.1 Melting Point
4.2 Boiling Point
4.3 Appearance
4.3.1 Physical State
Solid
4.3.2 Color
Unknown
4.3.3 Luster
Unknown Luster
4.4 Hardness
4.4.1 Mohs Hardness
4.4.2 Brinell Hardness
4.4.3 Vickers Hardness
4.5 Speed of Sound
4.6 Optical Properties
4.6.1 Refractive Index
4.6.2 Reflectivity
4.7 Allotropes
✔
✘
6% - Transition Metals Metals have it !
▶
4.7.1 α Allotropes
Not Available
4.7.2 β Allotropes
Not Available
4.7.3 γ Allotropes
Not Available
5 Chemical
5.1 Chemical Formula
Db
5.2 Isotopes
5.2.1 Known Isotopes
5.3 Electronegativity
5.3.1 Pauling Electronegativity
5.3.2 Sanderson Electronegativity
5.3.3 Allred Rochow Electronegativity
5.3.4 Mulliken-Jaffe Electronegativity
5.3.5 Allen Electronegativity
5.4 Electropositivity
5.4.1 Pauling Electropositivity
5.5 Ionization Energies
5.5.1 1st Energy Level
5.5.2 2nd Energy Level
5.5.3 3rd Energy Level
5.5.4 4th Energy Level
5.5.5 5th Energy Level
5.5.6 6th Energy Level
5.5.7 7th Energy level
5.5.8 8th Energy Level
5.5.9 9th Energy Level
5.5.10 10th Energy Level
5.5.11 11th Energy Level
5.5.12 12th Energy Level
5.5.13 13th Energy Level
5.5.14 14th Energy Level
5.5.15 15th Energy Level
5.5.16 16th Energy Level
5.5.17 17th Energy Level
5.5.18 18th Energy Level
5.5.19 19th Energy Level
5.5.20 20th Energy Level
5.5.21 21st Energy Level
5.5.22 22nd Energy Level
5.5.23 23rd Energy Level
5.5.24 24th Energy Level
5.5.25 25th Energy Level
5.5.26 26th Energy Level
5.5.27 27th Energy Level
5.5.28 28th Energy Level
5.5.29 29th Energy Level
5.5.30 30th Energy Level
5.6 Electrochemical Equivalent
5.7 Electron Work Function
5.8 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
6 Atomic
6.1 Atomic Number
6.2 Electron Configuration
[Rn] 5f14 6d3 7s2
6.3 Crystal Structure
Body Centered Cubic (BCC)
6.3.1 Crystal Lattice
6.4 Atom
6.4.1 Number of Protons
6.4.2 Number of Neutrons
6.4.3 Number of Electrons
6.5 Radius of an Atom
6.5.1 Atomic Radius
6.5.2 Covalent Radius
6.5.3 Van der Waals Radius
6.6 Atomic Weight
6.7 Atomic Volume
6.8 Adjacent Atomic Numbers
6.8.1 Previous Element
6.8.2 Next Element
6.9 Valence Electron Potential
6.10 Lattice Constant
6.11 Lattice Angles
NA
6.12 Lattice C/A Ratio
7 Mechanical
7.1 Density
7.1.1 Density At Room Temperature
7.1.2 Density When Liquid (at m.p.)
7.2 Tensile Strength
7.3 Viscosity
7.4 Vapor Pressure
7.4.1 Vapor Pressure at 1000 K
7.4.2 Vapor Pressure at 2000 K
7.5 Elasticity properties
7.5.1 Shear Modulus
7.5.2 Bulk Modulus
7.5.3 Young's Modulus
7.6 Poisson Ratio
7.7 Other Mechanical Properties
Unknown
8 Magnetic
8.1 Magnetic Characteristics
8.1.1 Specific Gravity
8.1.2 Magnetic Ordering
Unknown
8.1.3 Permeability
8.1.4 Susceptibility
8.2 Electrical Properties
8.2.1 Electrical Property
Unknown
8.2.2 Resistivity
8.2.3 Electrical Conductivity
8.2.4 Electron Affinity
9 Thermal
9.1 Specific Heat
1.3 Molar Heat Capacity
1.4 Thermal Conductivity
1.6 Critical Temperature
1.10 Thermal Expansion
1.13 Enthalpy
1.13.1 Enthalpy of Vaporization
2.4.2 Enthalpy of Fusion
2.4.4 Enthalpy of Atomization
2.5 Standard Molar Entropy