Symbol
Db
  
Ti
  
Period Number
7
  
4
  
Block
d block
  
d block
  
Element Family
Transition Metal
  
Transition Metal
  
Space Group Name
Not Available
  
P63/mmc
  
Space Group Number
Not Available
  
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.
  
Sources
Produced by Bombarding Am243 with Ne22, Synthetically Produced
  
Found in Minerals, Mining
  
History
  
  
Who Discovered
Joint Institute for Nuclear Research
  
W. Gregor & J. Berzelius
  
Discovery
In 1968
  
In 1791
  
Abundance
  
  
Abundance In Universe
Not Available
  
Abundance In Sun
~-9999 %
  
Abundance In Meteorites
Not Available
  
Abundance In Earth's Crust
Not Available
  
Abundance In Oceans
Not Available
  
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.
  
Industrial Uses
NA
  
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
  
Medical Uses
NA
  
Dentistry, Surgical Instruments Manufacturing
  
Other Uses
Research Purposes
  
Alloys, Jewellery, Sculptures, Statues
  
Biological Properties
  
  
Toxicity
Unknown
  
Non Toxic
  
Present in Human Body
No
  
Yes
  
In Blood
0.00 Blood/mg dm-3
  
37
0.05 Blood/mg dm-3
  
16
In Bone
0.00 p.p.m.
  
36
Not Available
  
Melting Point
Not Available
  
1,660.00 °C
  
18
Boiling Point
Not Available
  
3,287.00 °C
  
22
Appearance
  
  
Physical State
Solid
  
Solid
  
Color
Unknown
  
Silvery Gray-White
  
Luster
Unknown Luster
  
Metallic
  
Hardness
  
  
Mohs Hardness
Not Available
  
Brinell Hardness
Not Available
  
Vickers Hardness
Not Available
  
Speed of Sound
Not Available
  
5,090.00 m/s
  
9
Optical Properties
  
  
Allotropes
No
  
No
  
α Allotropes
Not Available
  
Not Available
  
β Allotropes
Not Available
  
Not Available
  
γ Allotropes
Not Available
  
Not Available
  
Chemical Formula
Db
  
Ti
  
Isotopes
  
  
Electronegativity
  
  
Pauling Electronegativity
Not Available
  
Sanderson Electronegativity
Not Available
  
Allred Rochow Electronegativity
Not Available
  
Allen Electronegativity
Not Available
  
Electropositivity
  
  
Pauling Electropositivity
Not Available
  
Ionization Energies
  
  
1st Energy Level
664.80 kJ/mol
  
38
658.80 kJ/mol
  
39
2nd Energy Level
1,546.70 kJ/mol
  
38
1,309.80 kJ/mol
  
99+
3rd Energy Level
2,378.40 kJ/mol
  
99+
2,652.50 kJ/mol
  
99+
4th Energy Level
3,298.80 kJ/mol
  
99+
4,174.60 kJ/mol
  
32
5th Energy Level
4,305.20 kJ/mol
  
39
9,581.00 kJ/mol
  
5
6th Energy Level
Not Available
  
11,533.00 kJ/mol
  
6
7th Energy level
Not Available
  
13,590.00 kJ/mol
  
6
8th Energy Level
Not Available
  
16,440.00 kJ/mol
  
8
9th Energy Level
Not Available
  
18,530.00 kJ/mol
  
11
10th Energy Level
Not Available
  
20,833.00 kJ/mol
  
15
11th Energy Level
Not Available
  
25,575.00 kJ/mol
  
14
12th Energy Level
Not Available
  
28,125.00 kJ/mol
  
14
13th Energy Level
Not Available
  
76,015.00 kJ/mol
  
1
14th Energy Level
Not Available
  
83,280.00 kJ/mol
  
2
15th Energy Level
Not Available
  
90,880.00 kJ/mol
  
3
16th Energy Level
Not Available
  
100,700.00 kJ/mol
  
4
17th Energy Level
Not Available
  
109,100.00 kJ/mol
  
5
18th Energy Level
Not Available
  
117,800.00 kJ/mol
  
6
19th Energy Level
Not Available
  
129,900.00 kJ/mol
  
7
20th Energy Level
Not Available
  
137,530.00 kJ/mol
  
9
Electrochemical Equivalent
Not Available
  
0.45 g/amp-hr
  
99+
Electron Work Function
Not Available
  
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
  
Chemical Stability, Ionization
  
Electron Configuration
[Rn] 5f14 6d3 7s2
  
[Ar] 3d2 4s2
  
Crystal Structure
Body Centered Cubic (BCC)
  
Hexagonal Close Packed (HCP)
  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100
  
HCP-Crystal-Structure-of-Titanium.jpg#100
  
Atom
  
  
Radius of an Atom
  
  
Van der Waals Radius
Not Available
  
Atomic Volume
Not Available
  
10.64 cm3/mol
  
99+
Adjacent Atomic Numbers
  
  
Valence Electron Potential
Not Available
  
95.20 (-eV)
  
10
Lattice Constant
Not Available
  
Lattice Angles
NA
  
π/2, π/2, 2 π/3
  
Lattice C/A Ratio
Not Available
  
Not Available
  
Density
  
  
Density At Room Temperature
4.51 g/cm3
  
99+
Density When Liquid (at m.p.)
Not Available
  
4.11 g/cm3
  
99+
Tensile Strength
Not Available
  
Viscosity
Not Available
  
Not Available
  
Vapor Pressure
  
  
Vapor Pressure at 2000 K
Not Available
  
Elasticity properties
  
  
Shear Modulus
Not Available
  
Bulk Modulus
Not Available
  
Young's Modulus
Not Available
  
Poisson Ratio
Not Available
  
Other Mechanical Properties
Unknown
  
Ductile
  
Magnetic Characteristics
  
  
Specific Gravity
Not Available
  
Magnetic Ordering
Unknown
  
Paramagnetic
  
Electrical Properties
  
  
Electrical Property
Unknown
  
Poor Conductor
  
Resistivity
Not Available
  
420.00 nΩ·m
  
12
Electrical Conductivity
Not Available
  
0.02 10
6/cm Ω
  
99+
Electron Affinity
Not Available
  
7.60 kJ/mol
  
37
Specific Heat
Not Available
  
0.52 J/(kg K)
  
9
Molar Heat Capacity
Not Available
  
25.06 J/mol·K
  
99+
Thermal Conductivity
Not Available
  
21.90 W/m·K
  
99+
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
Not Available
  
8.60 µm/(m·K)
  
99+
Enthalpy
  
  
Enthalpy of Vaporization
Not Available
  
429.00 kJ/mol
  
15
Enthalpy of Fusion
Not Available
  
15.48 kJ/mol
  
19
Enthalpy of Atomization
Not Available
  
468.60 kJ/mol
  
15
Standard Molar Entropy
Not Available
  
27.30 J/mol.K
  
99+