1 Periodic Table
1.1 Symbol
1.2 Group Number
3.3 Period Number
5.2 Block
5.3 Element Family
Transition Metal
Transition Metal
5.4 CAS Number
538503547440053
7429905
54386242
5.7 Space Group Name
5.8 Space Group Number
6 Facts
6.1 Interesting Facts
- IUPAC allotted a temporary name to Dubnium metal as “ Unnilpentium”.
- In the production of Dubnium, thermal gradient chromatography is used.
- Palladium alloys are used for Jewelry contains (95% Palladium and 5% Ruthenium)
- In the late 1800s, Palladium metal used have more economical value than the Platinum metal.
- Palladium element is known as a good catalyst
6.2 Sources
Produced by Bombarding Am243 with Ne22, Synthetically Produced
Ores of metals
6.3 History
6.3.1 Who Discovered
Joint Institute for Nuclear Research
William Hyde Wollaston
6.3.2 Discovery
6.4 Abundance
6.4.1 Abundance In Universe
6.5.1 Abundance In Sun
~-9999 %~0.0000003 %
1E-08
0.1
6.6.4 Abundance In Meteorites
7.2.2 Abundance In Earth's Crust
7.4.3 Abundance In Oceans
7.5.3 Abundance In Humans
9 Uses
9.1 Uses & Benefits
- Currently known uses of Dubnium metal are limited to research purpose only.
- Mostly palladium metal is used in catalytic converters. In electronic industry it is used in ceramic capacitors of mobile and computer.
- It is used in jewellery and dental fillings and crowns.
9.1.1 Industrial Uses
NA
Aerospace Industry, Automobile Industry, Electronic Industry
9.1.2 Medical Uses
NA
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing
9.1.3 Other Uses
Research Purposes
Coinage, Bullion, Jewellery
9.2 Biological Properties
9.2.1 Toxicity
9.2.3 Present in Human Body
9.2.4 In Blood
0.00 Blood/mg dm-3NA
0
1970
9.4.2 In Bone
10 Physical
10.1 Melting Point
10.2 Boiling Point
10.4 Appearance
10.4.1 Physical State
10.4.2 Color
10.4.3 Luster
10.5 Hardness
10.5.1 Mohs Hardness
10.6.7 Brinell Hardness
10.6.13 Vickers Hardness
10.7 Speed of Sound
10.8 Optical Properties
10.8.1 Refractive Index
10.8.4 Reflectivity
10.9 Allotropes
10.9.1 α Allotropes
Not Available
Not Available
10.9.2 β Allotropes
Not Available
Not Available
10.9.3 γ Allotropes
Not Available
Not Available
11 Chemical
11.1 Chemical Formula
11.2 Isotopes
11.2.1 Known Isotopes
11.4 Electronegativity
11.4.1 Pauling Electronegativity
11.4.6 Sanderson Electronegativity
11.5.7 Allred Rochow Electronegativity
11.6.5 Mulliken-Jaffe Electronegativity
11.6.12 Allen Electronegativity
11.9 Electropositivity
11.9.1 Pauling Electropositivity
12.2 Ionization Energies
12.2.1 1st Energy Level
664.80 kJ/mol520.23 kJ/mol
375.7
26130
12.4.1 2nd Energy Level
1,546.70 kJ/mol7,298.22 kJ/mol
710.2162
28750
12.5.4 3rd Energy Level
2,378.40 kJ/mol11,815.13 kJ/mol
1600
34230
12.6.1 4th Energy Level
3,298.80 kJ/molNA
2780
37066
12.8.2 5th Energy Level
4,305.20 kJ/molNA
4305.2
97510
13.1.2 6th Energy Level
13.5.2 7th Energy level
13.8.1 8th Energy Level
13.9.1 9th Energy Level
14.1.2 10th Energy Level
14.3.1 11th Energy Level
14.9.1 12th Energy Level
14.10.1 13th Energy Level
15.1.2 14th Energy Level
16.1.5 15th Energy Level
16.3.1 16th Energy Level
16.5.3 17th Energy Level
16.6.2 18th Energy Level
17.1.2 19th Energy Level
17.3.2 20th Energy Level
17.4.1 21st Energy Level
17.6.1 22nd Energy Level
18.1.2 23rd Energy Level
18.2.4 24th Energy Level
18.2.7 25th Energy Level
18.3.4 26th Energy Level
18.4.1 27th Energy Level
18.4.3 28th Energy Level
18.4.4 29th Energy Level
19.1.1 30th Energy Level
19.3 Electrochemical Equivalent
NA1.99 g/amp-hr
0.16812
8.3209
19.5 Electron Work Function
19.7 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Chemical Stability, Corrosion, Ionization, Solubility
20 Atomic
20.1 Atomic Number
20.3 Electron Configuration
[Rn] 5f14 6d3 7s2
[Kr] 4d10
20.4 Crystal Structure
Body Centered Cubic (BCC)
Face Centered Cubic (FCC)
20.4.1 Crystal Lattice
20.5 Atom
20.5.1 Number of Protons
20.6.2 Number of Neutrons
20.6.4 Number of Electrons
20.7 Radius of an Atom
20.7.1 Atomic Radius
139.00 pm137.00 pm
112
265
20.7.2 Covalent Radius
149.00 pm139.00 pm
96
260
20.8.1 Van der Waals Radius
20.9 Atomic Weight
268.00 amu106.42 amu
6.94
294
20.10 Atomic Volume
NA8.90 cm3/mol
1.39
71.07
20.11 Adjacent Atomic Numbers
20.11.1 Previous Element
20.11.2 Next Element
20.12 Valence Electron Potential
20.13 Lattice Constant
NA389.07 pm
228.58
891.25
20.14 Lattice Angles
20.15 Lattice C/A Ratio
21 Mechanical
21.1 Density
21.1.1 Density At Room Temperature
29.30 g/cm312.02 g/cm3
0.534
40.7
21.1.2 Density When Liquid (at m.p.)
21.2 Tensile Strength
21.3 Viscosity
21.4 Vapor Pressure
21.4.1 Vapor Pressure at 1000 K
21.4.2 Vapor Pressure at 2000 K
21.5 Elasticity properties
21.5.1 Shear Modulus
21.5.2 Bulk Modulus
21.5.3 Young's Modulus
21.6 Poisson Ratio
21.7 Other Mechanical Properties
Unknown
Ductile, Malleable, Weldable
22 Magnetic
22.1 Magnetic Characteristics
22.1.1 Specific Gravity
22.1.2 Magnetic Ordering
22.1.3 Permeability
22.1.4 Susceptibility
22.2 Electrical Properties
22.2.1 Electrical Property
22.2.2 Resistivity
22.2.3 Electrical Conductivity
NA0.10 106/cm Ω
0.00666
0.63
22.2.4 Electron Affinity
23 Thermal
23.1 Specific Heat
23.2 Molar Heat Capacity
NA25.98 J/mol·K
16.443
62.7
23.3 Thermal Conductivity
23.4 Critical Temperature
23.5 Thermal Expansion
23.6 Enthalpy
23.6.1 Enthalpy of Vaporization
NA376.60 kJ/mol
7.32
799.1
23.6.2 Enthalpy of Fusion
23.6.3 Enthalpy of Atomization
23.7 Standard Molar Entropy
NA37.60 J/mol.K
9.5
198.1