1 Periodic Table
1.1 Symbol
1.2 Group Number
1.3 Period Number
1.4 Block
1.5 Element Family
Transition Metal
Transition Metal
1.6 CAS Number
538503547440484
7429905
54386242
1.7 Space Group Name
1.8 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.
- The main source of Cobalt is as a by-product of copper and nickel metal mining.
- Cobalt metal can be obtained from other elements like Oxygen, Sulfur and Arsenic.
- It s also used in electroplating process as it exhibits anti cession properties.
2.2 Sources
Produced by Bombarding Am243 with Ne22, Synthetically Produced
Found in Compounds, Mining, Ores of Minerals
2.3 History
2.3.1 Who Discovered
Joint Institute for Nuclear Research
Georg Brandt
2.3.2 Discovery
2.4 Abundance
2.4.1 Abundance In Universe
2.5.2 Abundance In Sun
~-9999 %~0.0004 %
1E-08
0.1
2.5.4 Abundance In Meteorites
2.5.6 Abundance In Earth's Crust
2.5.8 Abundance In Oceans
2.5.9 Abundance In Humans
3 Uses
3.1 Uses & Benefits
- Currently known uses of Dubnium metal are limited to research purpose only.
- Its alloys with aluminum and nickel are used to make powerful magnets.
-
Few other alloys exhibit high-temperature strength and hence they are used in Turbines of Jet and Gas engine.
3.1.1 Industrial Uses
NA
Chemical Industry, Electrical Industry, Electronic Industry
3.1.2 Medical Uses
NA
Pharmaceutical Industry
3.1.3 Other Uses
3.2 Biological Properties
3.2.1 Toxicity
3.2.2 Present in Human Body
3.2.3 In Blood
0.00 Blood/mg dm-30.04 Blood/mg dm-3
0
1970
3.2.5 In Bone
0.00 p.p.m.0.04 p.p.m.
0
170000
4 Physical
4.1 Melting Point
4.2 Boiling Point
4.3 Appearance
4.3.1 Physical State
4.3.2 Color
4.3.3 Luster
4.4 Hardness
4.4.1 Mohs Hardness
4.4.3 Brinell Hardness
4.4.5 Vickers Hardness
4.5 Speed of Sound
4.6 Optical Properties
4.6.1 Refractive Index
4.6.3 Reflectivity
4.7 Allotropes
4.7.1 α Allotropes
4.7.2 β Allotropes
4.7.3 γ Allotropes
Not Available
Not Available
5 Chemical
5.1 Chemical Formula
5.2 Isotopes
5.2.1 Known Isotopes
5.3 Electronegativity
5.3.1 Pauling Electronegativity
5.3.3 Sanderson Electronegativity
5.3.5 Allred Rochow Electronegativity
5.3.8 Mulliken-Jaffe Electronegativity
5.3.11 Allen Electronegativity
5.4 Electropositivity
5.4.1 Pauling Electropositivity
5.5 Ionization Energies
5.5.1 1st Energy Level
664.80 kJ/mol760.40 kJ/mol
375.7
26130
5.5.3 2nd Energy Level
1,546.70 kJ/mol1,648.00 kJ/mol
710.2162
28750
5.5.5 3rd Energy Level
2,378.40 kJ/mol3,232.00 kJ/mol
1600
34230
5.5.8 4th Energy Level
3,298.80 kJ/mol4,950.00 kJ/mol
2780
37066
5.6.1 5th Energy Level
4,305.20 kJ/mol7,670.00 kJ/mol
4305.2
97510
5.7.1 6th Energy Level
NA9,840.00 kJ/mol
5715.8
105800
6.1.1 7th Energy level
NA12,440.00 kJ/mol
7226.8
114300
6.4.2 8th Energy Level
NA15,230.00 kJ/mol
8857.4
125300
6.4.4 9th Energy Level
NA17,959.00 kJ/mol
14110
134700
6.4.6 10th Energy Level
NA26,570.00 kJ/mol
17100
144300
6.5.2 11th Energy Level
NA29,400.00 kJ/mol
19900
169988
6.5.4 12th Energy Level
NA32,400.00 kJ/mol
22219
189368
6.6.1 13th Energy Level
NA36,600.00 kJ/mol
26930
76015
6.7.1 14th Energy Level
NA39,700.00 kJ/mol
29196
86450
6.7.2 15th Energy Level
NA42,800.00 kJ/mol
41987
97510
6.10.1 16th Energy Level
NA49,396.00 kJ/mol
47206
109480
6.12.1 17th Energy Level
NA52,737.00 kJ/mol
52737
122200
7.1.2 18th Energy Level
NA134,810.00 kJ/mol
58570
134810
7.1.3 19th Energy Level
NA145,170.00 kJ/mol
64702
148700
7.5.3 20th Energy Level
NA154,700.00 kJ/mol
80400
171200
7.5.4 21st Energy Level
NA167,400.00 kJ/mol
87000
179100
7.5.6 22nd Energy Level
NA178,100.00 kJ/mol
93400
184900
7.5.7 23rd Energy Level
NA189,300.00 kJ/mol
98420
198800
7.5.8 24th Energy Level
7.6.1 25th Energy Level
7.6.2 26th Energy Level
8.1.2 27th Energy Level
8.1.3 28th Energy Level
8.1.6 29th Energy Level
8.1.8 30th Energy Level
8.3 Electrochemical Equivalent
NA1.10 g/amp-hr
0.16812
8.3209
8.4 Electron Work Function
8.5 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Chemical Stability, Ionization
9 Atomic
9.1 Atomic Number
9.2 Electron Configuration
[Rn] 5f14 6d3 7s2
[Ar] 3d2 4s2
9.3 Crystal Structure
Body Centered Cubic (BCC)
Hexagonal Close Packed (HCP)
9.3.1 Crystal Lattice
9.4 Atom
9.4.1 Number of Protons
9.4.3 Number of Neutrons
9.4.4 Number of Electrons
10.2 Radius of an Atom
10.2.1 Atomic Radius
139.00 pm147.00 pm
112
265
10.2.2 Covalent Radius
149.00 pm160.00 pm
96
260
10.2.3 Van der Waals Radius
10.4 Atomic Weight
268.00 amu47.87 amu
6.94
294
10.5 Atomic Volume
NA10.64 cm3/mol
1.39
71.07
10.7 Adjacent Atomic Numbers
10.7.1 Previous Element
10.7.2 Next Element
10.8 Valence Electron Potential
10.9 Lattice Constant
NA295.08 pm
228.58
891.25
10.11 Lattice Angles
10.12 Lattice C/A Ratio
11 Mechanical
11.1 Density
11.1.1 Density At Room Temperature
29.30 g/cm34.51 g/cm3
0.534
40.7
11.2.1 Density When Liquid (at m.p.)
11.4 Tensile Strength
11.5 Viscosity
11.6 Vapor Pressure
11.6.1 Vapor Pressure at 1000 K
11.6.3 Vapor Pressure at 2000 K
11.8 Elasticity properties
11.8.1 Shear Modulus
11.8.2 Bulk Modulus
11.8.3 Young's Modulus
11.9 Poisson Ratio
11.10 Other Mechanical Properties
12 Magnetic
12.1 Magnetic Characteristics
12.1.1 Specific Gravity
12.1.2 Magnetic Ordering
12.1.3 Permeability
12.1.4 Susceptibility
12.2 Electrical Properties
12.2.1 Electrical Property
12.2.2 Resistivity
12.2.3 Electrical Conductivity
NA0.02 106/cm Ω
0.00666
0.63
12.2.4 Electron Affinity
13 Thermal
13.1 Specific Heat
13.2 Molar Heat Capacity
NA25.06 J/mol·K
16.443
62.7
13.3 Thermal Conductivity
13.4 Critical Temperature
13.5 Thermal Expansion
13.6 Enthalpy
13.6.1 Enthalpy of Vaporization
NA429.00 kJ/mol
7.32
799.1
13.6.2 Enthalpy of Fusion
13.6.3 Enthalpy of Atomization
13.7 Standard Molar Entropy
NA27.30 J/mol.K
9.5
198.1