1 Periodic Table
1.1 Symbol
Db
1.2 Group Number
1.4 Period Number
2.2 Block
d block
2.3 Element Family
Transition Metal
2.4 CAS Number
2.5 Space Group Name
Not Available
2.6 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.
3.2 Sources
Produced by Bombarding Am243 with Ne22, Synthetically Produced
3.3 History
3.3.1 Who Discovered
Joint Institute for Nuclear Research
3.3.2 Discovery
In 1968
3.4 Abundance
3.4.1 Abundance In Universe
3.4.3 Abundance In Sun
3.4.5 Abundance In Meteorites
3.5.2 Abundance In Earth's Crust
3.5.4 Abundance In Oceans
3.5.6 Abundance In Humans
4 Uses
4.1 Uses & Benefits
- Currently known uses of Dubnium metal are limited to research purpose only.
4.1.1 Industrial Uses
NA
4.1.2 Medical Uses
NA
4.1.3 Other Uses
Research Purposes
4.2 Biological Properties
4.2.1 Toxicity
Unknown
4.2.2 Present in Human Body
✔
✘
60% - Transition Metals Metals have it !
▶
4.2.3 In Blood
4.3.1 In Bone
5 Physical
5.1 Melting Point
5.4 Boiling Point
5.6 Appearance
5.6.1 Physical State
Solid
5.6.2 Color
Unknown
5.6.3 Luster
Unknown Luster
5.7 Hardness
5.7.1 Mohs Hardness
6.1.2 Brinell Hardness
6.1.4 Vickers Hardness
6.3 Speed of Sound
6.5 Optical Properties
6.5.1 Refractive Index
6.6.2 Reflectivity
6.7 Allotropes
✔
✘
6% - Transition Metals Metals have it !
▶
6.7.1 α Allotropes
Not Available
6.7.2 β Allotropes
Not Available
6.7.3 γ Allotropes
Not Available
7 Chemical
7.1 Chemical Formula
Db
7.2 Isotopes
7.2.1 Known Isotopes
7.4 Electronegativity
7.4.1 Pauling Electronegativity
7.4.3 Sanderson Electronegativity
7.4.4 Allred Rochow Electronegativity
7.4.6 Mulliken-Jaffe Electronegativity
7.5.1 Allen Electronegativity
8.2 Electropositivity
8.2.1 Pauling Electropositivity
8.3 Ionization Energies
8.3.1 1st Energy Level
8.3.3 2nd Energy Level
8.4.3 3rd Energy Level
8.4.5 4th Energy Level
8.4.7 5th Energy Level
8.4.8 6th Energy Level
9.1.1 7th Energy level
9.2.1 8th Energy Level
9.2.2 9th Energy Level
9.3.1 10th Energy Level
9.3.2 11th Energy Level
9.4.1 12th Energy Level
9.5.1 13th Energy Level
9.6.2 14th Energy Level
9.6.4 15th Energy Level
9.6.5 16th Energy Level
9.6.7 17th Energy Level
9.6.8 18th Energy Level
9.7.1 19th Energy Level
9.7.2 20th Energy Level
9.7.3 21st Energy Level
9.7.4 22nd Energy Level
9.7.5 23rd Energy Level
9.7.6 24th Energy Level
9.7.7 25th Energy Level
9.7.8 26th Energy Level
9.7.9 27th Energy Level
9.7.10 28th Energy Level
9.7.11 29th Energy Level
9.7.12 30th Energy Level
9.8 Electrochemical Equivalent
9.9 Electron Work Function
9.10 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
10 Atomic
10.1 Atomic Number
10.2 Electron Configuration
[Rn] 5f14 6d3 7s2
10.3 Crystal Structure
Body Centered Cubic (BCC)
10.3.1 Crystal Lattice
10.4 Atom
10.4.1 Number of Protons
10.4.2 Number of Neutrons
10.4.3 Number of Electrons
10.5 Radius of an Atom
10.5.1 Atomic Radius
10.5.2 Covalent Radius
10.5.3 Van der Waals Radius
10.6 Atomic Weight
10.7 Atomic Volume
10.8 Adjacent Atomic Numbers
10.8.1 Previous Element
10.8.2 Next Element
10.9 Valence Electron Potential
10.10 Lattice Constant
10.11 Lattice Angles
NA
10.12 Lattice C/A Ratio
11 Mechanical
11.1 Density
11.1.1 Density At Room Temperature
11.1.2 Density When Liquid (at m.p.)
11.2 Tensile Strength
11.3 Viscosity
11.4 Vapor Pressure
11.4.1 Vapor Pressure at 1000 K
11.4.2 Vapor Pressure at 2000 K
11.5 Elasticity properties
11.5.1 Shear Modulus
11.5.2 Bulk Modulus
11.5.3 Young's Modulus
11.6 Poisson Ratio
11.7 Other Mechanical Properties
Unknown
12 Magnetic
12.1 Magnetic Characteristics
12.1.1 Specific Gravity
12.1.2 Magnetic Ordering
Unknown
12.1.3 Permeability
12.1.4 Susceptibility
12.2 Electrical Properties
12.2.1 Electrical Property
Unknown
12.2.2 Resistivity
12.2.3 Electrical Conductivity
12.2.4 Electron Affinity
13 Thermal
13.1 Specific Heat
13.2 Molar Heat Capacity
13.3 Thermal Conductivity
13.4 Critical Temperature
13.5 Thermal Expansion
13.6 Enthalpy
13.6.1 Enthalpy of Vaporization
13.6.2 Enthalpy of Fusion
13.6.3 Enthalpy of Atomization
13.7 Standard Molar Entropy