1 Periodic Table
1.1 Symbol
1.2 Group Number
2.2 Period Number
3.5 Block
3.6 Element Family
Transition Metal
Transition Metal
3.7 CAS Number
538503547440326
7429905
54386242
3.9 Space Group Name
3.10 Space Group Number
4 Facts
4.1 Interesting Facts
- IUPAC allotted a temporary name to Dubnium metal as “ Unnilpentium”.
- In the production of Dubnium, thermal gradient chromatography is used.
- The only metal which burns in Nitrogen is Titanium.
- Titanium is also known as corrosion resistant metal.
4.2 Sources
Produced by Bombarding Am243 with Ne22, Synthetically Produced
Found in Minerals, Mining
4.3 History
4.3.1 Who Discovered
Joint Institute for Nuclear Research
W. Gregor & J. Berzelius
4.3.2 Discovery
4.4 Abundance
4.4.1 Abundance In Universe
4.5.3 Abundance In Sun
~-9999 %~0.0004 %
1E-08
0.1
5.2.2 Abundance In Meteorites
5.2.5 Abundance In Earth's Crust
5.4.3 Abundance In Oceans
5.4.6 Abundance In Humans
6 Uses
6.1 Uses & Benefits
- Currently known uses of Dubnium metal are limited to research purpose only.
- Its alloys are used in spacecraft, aircraft and ammunition industry.
- Its pipes are used in distillation plants, submarines, hulls of big ships, etc.
6.1.1 Industrial Uses
NA
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
6.1.2 Medical Uses
NA
Dentistry, Surgical Instruments Manufacturing
6.1.3 Other Uses
Research Purposes
Alloys, Jewellery, Sculptures, Statues
6.2 Biological Properties
6.2.1 Toxicity
6.2.2 Present in Human Body
6.2.3 In Blood
0.00 Blood/mg dm-30.05 Blood/mg dm-3
0
1970
7.2.5 In Bone
8 Physical
8.1 Melting Point
9.2 Boiling Point
10.2 Appearance
10.2.1 Physical State
10.3.2 Color
Unknown
Silvery Gray-White
10.3.3 Luster
10.4 Hardness
10.4.1 Mohs Hardness
10.6.2 Brinell Hardness
10.7.2 Vickers Hardness
10.10 Speed of Sound
10.11 Optical Properties
10.11.1 Refractive Index
11.1.2 Reflectivity
11.2 Allotropes
11.2.1 α Allotropes
Not Available
Not Available
11.2.2 β Allotropes
Not Available
Not Available
11.2.3 γ Allotropes
Not Available
Not Available
12 Chemical
12.2 Chemical Formula
12.3 Isotopes
12.3.1 Known Isotopes
12.5 Electronegativity
12.5.1 Pauling Electronegativity
12.7.2 Sanderson Electronegativity
12.8.3 Allred Rochow Electronegativity
13.3.2 Mulliken-Jaffe Electronegativity
13.4.2 Allen Electronegativity
13.6 Electropositivity
13.6.1 Pauling Electropositivity
13.7 Ionization Energies
13.7.1 1st Energy Level
664.80 kJ/mol658.80 kJ/mol
375.7
26130
13.7.5 2nd Energy Level
1,546.70 kJ/mol1,309.80 kJ/mol
710.2162
28750
13.7.8 3rd Energy Level
2,378.40 kJ/mol2,652.50 kJ/mol
1600
34230
13.8.2 4th Energy Level
3,298.80 kJ/mol4,174.60 kJ/mol
2780
37066
13.8.4 5th Energy Level
4,305.20 kJ/mol9,581.00 kJ/mol
4305.2
97510
13.9.2 6th Energy Level
NA11,533.00 kJ/mol
5715.8
105800
13.9.4 7th Energy level
NA13,590.00 kJ/mol
7226.8
114300
13.10.2 8th Energy Level
NA16,440.00 kJ/mol
8857.4
125300
13.10.5 9th Energy Level
NA18,530.00 kJ/mol
14110
134700
13.10.8 10th Energy Level
NA20,833.00 kJ/mol
17100
144300
13.10.12 11th Energy Level
NA25,575.00 kJ/mol
19900
169988
13.10.16 12th Energy Level
NA28,125.00 kJ/mol
22219
189368
13.10.20 13th Energy Level
NA76,015.00 kJ/mol
26930
76015
13.10.24 14th Energy Level
NA83,280.00 kJ/mol
29196
86450
13.10.27 15th Energy Level
NA90,880.00 kJ/mol
41987
97510
13.10.29 16th Energy Level
NA100,700.00 kJ/mol
47206
109480
13.10.31 17th Energy Level
NA109,100.00 kJ/mol
52737
122200
13.10.34 18th Energy Level
NA117,800.00 kJ/mol
58570
134810
13.10.37 19th Energy Level
NA129,900.00 kJ/mol
64702
148700
13.10.38 20th Energy Level
NA137,530.00 kJ/mol
80400
171200
13.11.1 21st Energy Level
13.11.2 22nd Energy Level
13.11.4 23rd Energy Level
13.11.6 24th Energy Level
13.12.1 25th Energy Level
13.12.3 26th Energy Level
14.1.1 27th Energy Level
14.1.3 28th Energy Level
14.1.5 29th Energy Level
14.4.2 30th Energy Level
14.5 Electrochemical Equivalent
NA0.45 g/amp-hr
0.16812
8.3209
14.6 Electron Work Function
14.7 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Chemical Stability, Ionization
15 Atomic
15.1 Atomic Number
15.3 Electron Configuration
[Rn] 5f14 6d3 7s2
[Ar] 3d2 4s2
15.4 Crystal Structure
Body Centered Cubic (BCC)
Hexagonal Close Packed (HCP)
15.4.1 Crystal Lattice
15.5 Atom
15.5.1 Number of Protons
15.6.2 Number of Neutrons
15.9.1 Number of Electrons
15.13 Radius of an Atom
15.13.1 Atomic Radius
139.00 pm147.00 pm
112
265
16.2.2 Covalent Radius
149.00 pm160.00 pm
96
260
16.4.1 Van der Waals Radius
16.7 Atomic Weight
268.00 amu47.87 amu
6.94
294
17.3 Atomic Volume
NA10.64 cm3/mol
1.39
71.07
17.7 Adjacent Atomic Numbers
17.7.1 Previous Element
17.7.2 Next Element
17.8 Valence Electron Potential
18.2 Lattice Constant
NA295.08 pm
228.58
891.25
18.3 Lattice Angles
18.4 Lattice C/A Ratio
19 Mechanical
19.1 Density
19.1.1 Density At Room Temperature
29.30 g/cm34.51 g/cm3
0.534
40.7
19.2.3 Density When Liquid (at m.p.)
19.3 Tensile Strength
19.4 Viscosity
20.2 Vapor Pressure
20.2.1 Vapor Pressure at 1000 K
20.4.1 Vapor Pressure at 2000 K
20.7 Elasticity properties
20.7.1 Shear Modulus
20.10.1 Bulk Modulus
20.12.1 Young's Modulus
20.16 Poisson Ratio
21.2 Other Mechanical Properties
22 Magnetic
22.1 Magnetic Characteristics
22.1.1 Specific Gravity
22.1.3 Magnetic Ordering
22.1.4 Permeability
22.2.1 Susceptibility
22.4 Electrical Properties
22.4.1 Electrical Property
22.4.2 Resistivity
22.5.1 Electrical Conductivity
NA0.02 106/cm Ω
0.00666
0.63
22.6.2 Electron Affinity
23 Thermal
23.1 Specific Heat
23.3 Molar Heat Capacity
NA25.06 J/mol·K
16.443
62.7
23.4 Thermal Conductivity
23.5 Critical Temperature
23.7 Thermal Expansion
23.9 Enthalpy
23.9.1 Enthalpy of Vaporization
NA429.00 kJ/mol
7.32
799.1
24.1.4 Enthalpy of Fusion
24.1.6 Enthalpy of Atomization
24.3 Standard Molar Entropy
NA27.30 J/mol.K
9.5
198.1