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Dubnium vs Vanadium

Dubnium
Vanadium
Vanadium vs Dubnium


Periodic Table
Symbol
Db  
V  
Group Number
5  
13
5  
13
Period Number
7  
4  
Block
d block  
d block  
Element Family
Transition Metal  
Transition Metal  
CAS Number
53850354  
14
7440622  
27
Space Group Name
-  
Im_ 3m  
Space Group Number
166.00  
9
229.00  
2
Facts
Interesting Facts
  • IUPAC allotted a temporary name to Dubnium metal as “ Unnilpentium”.
  • In the production of Dubnium, thermal gradient chromatography is used.
  
  • Vanadium is a highly reactive metal, hence it is not found free in nature.
  • Vanadium can be found in almost 65 different types of minerals.
  
Sources
Produced by Bombarding Am243 with Ne22, Synthetically Produced  
Found As a By-product, Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
Joint Institute for Nuclear Research  
Andrés Manuel del Río  
Discovery
In 1968  
In 1801  
Abundance
  
  
Abundance In Universe
0.00 %  
40
0.00 %  
11
Abundance In Sun
-  
0.00 %  
13
Abundance In Meteorites
0.00 %  
99+
0.01 %  
14
Abundance In Earth's Crust
-  
0.02 %  
12
Abundance In Oceans
-  
0.00 %  
14
Abundance In Humans
-  
0.00 %  
19
Uses
Uses & Benefits
  • Currently known uses of Dubnium metal are limited to research purpose only.
  
  • Its ally with steel is used very tough and hence it is used in armor plates, axles, piston rods, tools and crankshafts.
  • Its oxide is used as pigments for glass and ceramics.
  
Industrial Uses
-  
Aerospace Industry, Automobile Industry, Chemical Industry  
Medical Uses
-  
-  
Other Uses
Research Purposes  
Alloys  
Biological Properties
  
  
Toxicity
-  
Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
40
0.00 Blood/mg dm-3  
39
In Bone
0.00 p.p.m.  
99+
0.00 p.p.m.  
36
Physical
Melting Point
-  
1,890.00 °C  
13
Boiling Point
0.00 °C  
99+
3,380.00 °C  
21
Appearance
  
  
Physical State
Solid  
Solid  
Color
-  
Blue-Silver Grey  
Luster
Unknown Luster  
Metallic  
Hardness
  
  
Mohs Hardness
6.00  
6
6.70  
4
Brinell Hardness
330.00 MPa  
38
600.00 MPa  
24
Vickers Hardness
400.00 MPa  
99+
628.00 MPa  
25
Speed of Sound
2,680.00 m/s  
99+
4,560.00 m/s  
22
Optical Properties
  
  
Refractive Index
1.20  
99+
2.05  
13
Reflectivity
55.00 %  
27
61.00 %  
22
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Db  
V  
Isotopes
  
  
Known Isotopes
10  
28
22  
17
Electronegativity
  
  
Pauling Electronegativity
2.20  
5
1.63  
21
Sanderson Electronegativity
1.30  
25
1.39  
21
Allred Rochow Electronegativity
1.30  
25
1.45  
17
Mulliken-Jaffe Electronegativity
1.10  
99+
1.63  
21
Allen Electronegativity
1.30  
40
1.53  
29
Electropositivity
  
  
Pauling Electropositivity
2.00  
99+
2.37  
34
Ionization Energies
  
  
1st Energy Level
664.80 kJ/mol  
38
650.90 kJ/mol  
99+
2nd Energy Level
1,546.70 kJ/mol  
39
1,414.00 kJ/mol  
99+
3rd Energy Level
2,378.40 kJ/mol  
99+
2,830.00 kJ/mol  
36
4th Energy Level
3,298.80 kJ/mol  
99+
4,507.00 kJ/mol  
35
5th Energy Level
4,305.20 kJ/mol  
99+
6,298.70 kJ/mol  
38
6th Energy Level
12,900.00 kJ/mol  
5
12,363.00 kJ/mol  
6
7th Energy level
3,300.00 kJ/mol  
99+
14,530.00 kJ/mol  
5
8th Energy Level
5,280.00 kJ/mol  
99+
16,730.00 kJ/mol  
7
9th Energy Level
5,780.00 kJ/mol  
99+
19,860.00 kJ/mol  
7
10th Energy Level
8,830.00 kJ/mol  
22
22,240.00 kJ/mol  
12
11th Energy Level
3,300.00 kJ/mol  
99+
24,670.00 kJ/mol  
15
12th Energy Level
88,300.00 kJ/mol  
2
29,730.00 kJ/mol  
34
13th Energy Level
4,760.00 kJ/mol  
99+
32,446.00 kJ/mol  
12
14th Energy Level
1,120.00 kJ/mol  
99+
86,450.00 kJ/mol  
1
15th Energy Level
33,000.00 kJ/mol  
99+
94,170.00 kJ/mol  
3
16th Energy Level
33,000.00 kJ/mol  
99+
102,300.00 kJ/mol  
3
17th Energy Level
1,129.00 kJ/mol  
19
112,700.00 kJ/mol  
4
18th Energy Level
0.00 kJ/mol  
99+
121,600.00 kJ/mol  
5
19th Energy Level
1,094.90 kJ/mol  
18
130,700.00 kJ/mol  
6
20th Energy Level
0.00 kJ/mol  
99+
143,400.00 kJ/mol  
8
21st Energy Level
883.00 kJ/mol  
36
151,440.00 kJ/mol  
8
22nd Energy Level
330.00 kJ/mol  
99+
650.00 kJ/mol  
32
23rd Energy Level
1,150.00 kJ/mol  
33
650.90 kJ/mol  
99+
24th Energy Level
528.30 kJ/mol  
99+
650.90 kJ/mol  
34
25th Energy Level
0.00 kJ/mol  
99+
650.90 kJ/mol  
36
26th Energy Level
579.80 kJ/mol  
99+
650.90 kJ/mol  
35
27th Energy Level
0.00 kJ/mol  
99+
650.90 kJ/mol  
36
28th Energy Level
1,150.00 kJ/mol  
3
650.90 kJ/mol  
99+
29th Energy Level
1,094.00 kJ/mol  
5
650.90 kJ/mol  
99+
30th Energy Level
0.00 kJ/mol  
99+
650.90 kJ/mol  
38
Electrochemical Equivalent
3.00 g/amp-hr  
21
0.38 g/amp-hr  
99+
Electron Work Function
4.90 eV  
12
4.30 eV  
25
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Anti Corrosion, Ionization, Radioactive Isotopes  
Atomic
Atomic Number
105  
13
23  
99+
Electron Configuration
[Rn] 5f14 6d3 7s2  
[Ar] 3d3 4s2  
Crystal Structure
Body Centered Cubic (BCC)  
Body Centered Cubic (BCC)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
105  
13
23  
99+
Number of Neutrons
157  
8
28  
99+
Number of Electrons
105  
13
23  
99+
Radius of an Atom
  
  
Atomic Radius
139.00 pm  
99+
134.00 pm  
99+
Covalent Radius
149.00 pm  
37
153.00 pm  
35
Van der Waals Radius
0.00 pm  
99+
200.00 pm  
35
Atomic Weight
268.00 amu  
10
50.94 amu  
99+
Atomic Volume
22.80 cm3/mol  
17
8.78 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Rutherfordium
  
Titanium
  
Next Element
Seaborgium
  
Chromium
  
Valence Electron Potential
0.00 (-eV)  
99+
120.00 (-eV)  
6
Lattice Constant
-  
303.00 pm  
99+
Lattice Angles
-  
π/2, π/2, π/2  
Lattice C/A Ratio
1.63  
14
1.70  
9
Mechanical
Density
  
  
Density At Room Temperature
29.30 g/cm3  
5
6.00 g/cm3  
99+
Density When Liquid (at m.p.)
29.30 g/cm3  
6
5.50 g/cm3  
99+
Tensile Strength
0.10 MPa  
99+
800.00 MPa  
6
Viscosity
0.00  
25
0.00  
11
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
22
0.00 (Pa)  
37
Vapor Pressure at 2000 K
0.00 (Pa)  
30
0.23 (Pa)  
16
Elasticity properties
  
  
Shear Modulus
34.00 GPa  
22
47.00 GPa  
16
Bulk Modulus
39.00 GPa  
39
160.00 GPa  
11
Young's Modulus
0.00 GPa  
99+
128.00 GPa  
17
Poisson Ratio
0.39  
5
0.37  
7
Other Mechanical Properties
-  
Ductile, Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
39.00  
3
5.96  
99+
Magnetic Ordering
-  
Paramagnetic  
Permeability
0.00 H/m  
17
0.00 H/m  
15
Susceptibility
0.00  
24
0.00  
8
Electrical Properties
  
  
Electrical Property
-  
Superconductor  
Resistivity
6.80 nΩ·m  
99+
197.00 nΩ·m  
19
Electrical Conductivity
0.00 106/cm Ω  
99+
0.05 106/cm Ω  
40
Electron Affinity
-  
50.60 kJ/mol  
25
Thermal
Specific Heat
0.10 J/(kg K)  
99+
0.49 J/(kg K)  
10
Molar Heat Capacity
29.30 J/mol·K  
11
24.89 J/mol·K  
99+
Thermal Conductivity
0.00 W/m·K  
99+
30.70 W/m·K  
40
Critical Temperature
1,323.00 K  
99+
2,183.00 K  
15
Thermal Expansion
13.20 µm/(m·K)  
37
8.40 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
289.70 kJ/mol  
99+
458.60 kJ/mol  
19
Enthalpy of Fusion
-  
17.57 kJ/mol  
14
Enthalpy of Atomization
-  
514.60 kJ/mol  
17
Standard Molar Entropy
55.00 J/mol.K  
34
28.90 J/mol.K  
99+
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