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Tungsten
Tungsten

Dubnium
Dubnium



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Tungsten vs Dubnium

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1 Periodic Table
1.1 Symbol
W
Db
1.2 Group Number
65
Gadolinium
0 17
1.3 Period Number
67
Lithium
2 7
1.4 Block
d block
d block
1.5 Element Family
Transition Metal
Transition Metal
1.6 CAS Number
744033753850354
Aluminium
7429905 54386242
1.7 Space Group Name
Im_ 3m
Not Available
1.8 Space Group Number
229.00NA
Plutonium
11 229
2 Facts
2.1 Interesting Facts
  • Tungsten element has the second highest melting point.
  • Pure tungsten can easily cut down with the help of hacksaw.
  • IUPAC allotted a temporary name to Dubnium metal as “ Unnilpentium”.
  • In the production of Dubnium, thermal gradient chromatography is used.
2.2 Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals
Produced by Bombarding Am243 with Ne22, Synthetically Produced
2.3 History
2.3.1 Who Discovered
Not Available
Joint Institute for Nuclear Research
2.3.2 Discovery
In 1781
In 1968
2.4 Abundance
2.4.1 Abundance In Universe
5 * 10-8 %NA
Thallium
5E-09 0.11
2.4.3 Abundance In Sun
~0.0000004 %~-9999 %
Beryllium
1E-08 0.1
2.4.5 Abundance In Meteorites
0.00 %NA
Gold
1.7E-07 22
2.4.7 Abundance In Earth's Crust
0.00 %NA
Radium
9.9E-12 8.1
2.4.10 Abundance In Oceans
0.00 %NA
Protactinium
2E-23 1.1
2.4.12 Abundance In Humans
NANA
Radium
1E-13 1.4
3 Uses
3.1 Uses & Benefits
  • Tungsten and its alloys are used in high-temperature applications like welding electrodes, high-temperature furnace, etc.
  • Tungsten carbide is very hard and used in metal working, mining and petroleum industry.
  • Currently known uses of Dubnium metal are limited to research purpose only.
3.1.2 Industrial Uses
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry
NA
3.1.3 Medical Uses
NA
NA
3.1.4 Other Uses
Alloys
Research Purposes
3.2 Biological Properties
3.2.1 Toxicity
Non Toxic
Unknown
3.2.2 Present in Human Body
3.2.3 In Blood
0.00 Blood/mg dm-30.00 Blood/mg dm-3
Plutonium
0 1970
3.2.5 In Bone
0.00 p.p.m.0.00 p.p.m.
Plutonium
0 170000
4 Physical
4.1 Melting Point
3,410.00 °CNA
Francium
27 3410
4.2 Boiling Point
5,660.00 °CNA
Flerovium
147 5660
4.3 Appearance
4.3.1 Physical State
Solid
Solid
4.3.2 Color
Grayish White
Unknown
4.3.3 Luster
Lustrous
Unknown Luster
4.4 Hardness
4.4.1 Mohs Hardness
7.50NA
Cesium
0.2 8.5
4.4.4 Brinell Hardness
2,000.00 MPaNA
Cesium
0.14 3490
4.4.7 Vickers Hardness
3,430.00 MPaNA
Palladium
121 3430
4.5 Speed of Sound
4,620.00 m/sNA
Thallium
818 16200
4.7 Optical Properties
4.7.1 Refractive Index
NANA
Mercury
1.000933 1.7229
4.8.1 Reflectivity
62.00 %NA
Molybdenum
58 97
4.9 Allotropes
4.9.1 α Allotropes
Not Available
Not Available
4.9.2 β Allotropes
Not Available
Not Available
4.9.3 γ Allotropes
Not Available
Not Available
5 Chemical
5.1 Chemical Formula
W
Db
5.3 Isotopes
5.3.1 Known Isotopes
3310
Tennessine
0 38
6.5 Electronegativity
6.5.1 Pauling Electronegativity
2.36NA
Francium
0.7 2.54
6.5.2 Sanderson Electronegativity
0.98NA
Cesium
0.22 2.56
6.5.5 Allred Rochow Electronegativity
1.40NA
Cesium
0.86 1.82
6.5.6 Mulliken-Jaffe Electronegativity
NANA
Cesium
0.62 2.48
6.6.2 Allen Electronegativity
1.47NA
Cesium
0.659 2.7
6.7 Electropositivity
6.7.1 Pauling Electropositivity
1.64NA
Gold
1.46 3.3
6.9 Ionization Energies
6.9.1 1st Energy Level
770.00 kJ/mol664.80 kJ/mol
Cesium
375.7 26130
6.9.2 2nd Energy Level
1,700.00 kJ/mol1,546.70 kJ/mol
Ruthenium
710.2162 28750
6.10.1 3rd Energy Level
NA2,378.40 kJ/mol
Osmium
1600 34230
6.12.1 4th Energy Level
NA3,298.80 kJ/mol
Thorium
2780 37066
6.13.1 5th Energy Level
NA4,305.20 kJ/mol
Tin
4305.2 97510
6.15.1 6th Energy Level
NANA
Seaborgium
5715.8 105800
7.1.2 7th Energy level
NANA
Bohrium
7226.8 114300
7.1.3 8th Energy Level
NANA
Hassium
8857.4 125300
7.1.5 9th Energy Level
NANA
Yttrium
14110 134700
7.2.1 10th Energy Level
NANA
Strontium
17100 144300
7.3.1 11th Energy Level
NANA
Yttrium
19900 169988
7.4.2 12th Energy Level
NANA
Molybdenum
22219 189368
7.4.4 13th Energy Level
NANA
Molybdenum
26930 76015
7.5.2 14th Energy Level
NANA
Molybdenum
29196 86450
7.5.4 15th Energy Level
NANA
Manganese
41987 97510
7.5.6 16th Energy Level
NANA
Iron
47206 109480
7.5.7 17th Energy Level
NANA
Cobalt
52737 122200
7.6.1 18th Energy Level
NANA
Nickel
58570 134810
8.1.2 19th Energy Level
NANA
Copper
64702 148700
8.1.5 20th Energy Level
NANA
Molybdenum
80400 171200
8.1.6 21st Energy Level
NANA
Molybdenum
87000 179100
8.1.8 22nd Energy Level
NANA
Molybdenum
93400 184900
8.2.3 23rd Energy Level
NANA
Molybdenum
98420 198800
8.2.4 24th Energy Level
NANA
Molybdenum
104400 195200
8.2.6 25th Energy Level
NANA
Molybdenum
121900 121900
8.2.8 26th Energy Level
NANA
Molybdenum
127700 127700
8.2.9 27th Energy Level
NANA
Molybdenum
133800 133800
9.1.1 28th Energy Level
NANA
Molybdenum
139800 139800
9.1.2 29th Energy Level
NANA
Molybdenum
148100 148100
9.2.1 30th Energy Level
NANA
Molybdenum
154500 154500
9.4 Electrochemical Equivalent
1.14 g/amp-hrNA
Beryllium
0.16812 8.3209
9.6 Electron Work Function
4.55 eVNA
Cesium
2.14 5.65
9.8 Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility
Ionization, Radioactive Isotopes, Radioactivity
10 Atomic
10.1 Atomic Number
74105
Lithium
3 117
10.3 Electron Configuration
[Xe] 4f14 5d4 6s2
[Rn] 5f14 6d3 7s2
10.4 Crystal Structure
Body Centered Cubic (BCC)
Body Centered Cubic (BCC)
10.4.1 Crystal Lattice
10.5 Atom
10.5.1 Number of Protons
74105
Lithium
3 117
10.5.3 Number of Neutrons
110157
Lithium
4 184
10.5.5 Number of Electrons
74105
Lithium
3 117
10.7 Radius of an Atom
10.7.1 Atomic Radius
139.00 pm139.00 pm
Beryllium
112 265
10.7.2 Covalent Radius
162.00 pm149.00 pm
Beryllium
96 260
10.7.3 Van der Waals Radius
200.00 pmNA
Zinc
139 348
10.8 Atomic Weight
183.84 amu268.00 amu
Lithium
6.94 294
10.9 Atomic Volume
9.53 cm3/molNA
Manganese
1.39 71.07
10.10 Adjacent Atomic Numbers
10.10.1 Previous Element
10.10.2 Next Element
10.11 Valence Electron Potential
140.00 (-eV)NA
Francium
8 392.42
10.12 Lattice Constant
316.52 pmNA
Beryllium
228.58 891.25
10.13 Lattice Angles
π/2, π/2, π/2
NA
10.14 Lattice C/A Ratio
NANA
Beryllium
1.567 1.886
11 Mechanical
11.1 Density
11.1.1 Density At Room Temperature
19.25 g/cm329.30 g/cm3
Lithium
0.534 40.7
11.1.2 Density When Liquid (at m.p.)
17.60 g/cm3NA
Lithium
0.512 20
11.2 Tensile Strength
370.00 MPaNA
Indium
2.5 11000
11.3 Viscosity
NANA
Mercury
0.001526 0.001526
11.4 Vapor Pressure
11.4.1 Vapor Pressure at 1000 K
NANA
Cerium
2.47E-11 121
11.4.2 Vapor Pressure at 2000 K
0.00 (Pa)NA
Palladium
2.62E-10 774
11.5 Elasticity properties
11.5.1 Shear Modulus
161.00 GPaNA
Potassium
1.3 222
11.5.2 Bulk Modulus
310.00 GPaNA
Cesium
1.6 462
11.5.3 Young's Modulus
411.00 GPaNA
Cesium
1.7 528
11.6 Poisson Ratio
0.28NA
Beryllium
0.032 0.47
11.7 Other Mechanical Properties
Ductile, Malleable
Unknown
12 Magnetic
12.1 Magnetic Characteristics
12.1.1 Specific Gravity
19.22NA
Lithium
0.53 4500
12.1.2 Magnetic Ordering
Paramagnetic
Unknown
12.1.3 Permeability
NANA
Bismuth
1.25643E-06 0.0063
12.1.4 Susceptibility
NANA
Bismuth
-0.000166 200000
12.2 Electrical Properties
12.2.1 Electrical Property
Superconductor
Unknown
12.2.2 Resistivity
52.80 nΩ·mNA
Thallium
0.18 961
12.2.3 Electrical Conductivity
0.19 106/cm ΩNA
Plutonium
0.00666 0.63
12.2.4 Electron Affinity
78.60 kJ/molNA
Mercury
0 222.8
13 Thermal
13.1 Specific Heat
0.13 J/(kg K)NA
Americium
0.11 3.6
13.2 Molar Heat Capacity
24.27 J/mol·KNA
Beryllium
16.443 62.7
13.3 Thermal Conductivity
173.00 W/m·KNA
Neptunium
6.3 429
13.4 Critical Temperature
NANA
Ytterbium
26.3 3223
13.5 Thermal Expansion
4.50 µm/(m·K)NA
Palladium
4.5 97
13.6 Enthalpy
13.6.1 Enthalpy of Vaporization
799.10 kJ/molNA
Zinc
7.32 799.1
13.6.2 Enthalpy of Fusion
35.23 kJ/molNA
Cesium
2.1 35.23
13.6.3 Enthalpy of Atomization
837.00 kJ/molNA
Mercury
61.5 837
13.7 Standard Molar Entropy
32.60 J/mol.KNA
Beryllium
9.5 198.1