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Bohrium vs Tungsten

Bohrium
Tungsten
Tungsten vs Bohrium


Periodic Table
Symbol
Bh  
W  
Group Number
7  
11
6  
12
Period Number
7  
6  
Block
d block  
d block  
Element Family
Transition Metal  
Transition Metal  
CAS Number
54037148  
12
7440337  
99+
Space Group Name
-  
Im_ 3m  
Space Group Number
276.00  
1
229.00  
2
Facts
Interesting Facts
  • Bohrium metal is also known as Unnilseptium (Uns) and Nielsbohrium (Ns).
  
  • Tungsten element has the second highest melting point.
  • Pure tungsten can easily cut down with the help of hacksaw.
  
Sources
Found in Minerals, Mining, Synthetically Produced  
Earth's crust, Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
Gesellschaft für Schwerionenforschung  
-  
Discovery
In 1981  
In 1781  
Abundance
  
  
Abundance In Universe
0.00 %  
37
0.00 %  
28
Abundance In Sun
-  
0.00 %  
23
Abundance In Meteorites
0.00 %  
99+
0.00 %  
39
Abundance In Earth's Crust
0.00 %  
99+
0.00 %  
39
Abundance In Oceans
-  
0.00 %  
18
Abundance In Humans
-  
0.00 %  
24
Uses
Uses & Benefits
  • Currently known uses of Bohrium metal are limited to research purpose only.
  
  • 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.
  
Industrial Uses
-  
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry  
Medical Uses
-  
-  
Other Uses
Research Purposes  
Alloys  
Biological Properties
  
  
Toxicity
-  
Non Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
40
0.00 Blood/mg dm-3  
31
In Bone
0.00 p.p.m.  
99+
0.00 p.p.m.  
40
Physical
Melting Point
-  
3,410.00 °C  
1
Boiling Point
0.00 °C  
99+
5,660.00 °C  
1
Appearance
  
  
Physical State
Solid  
Solid  
Color
-  
Grayish White  
Luster
Unknown Luster  
Lustrous  
Hardness
  
  
Mohs Hardness
7.00  
3
7.50  
2
Brinell Hardness
270.00 MPa  
99+
2,000.00 MPa  
4
Vickers Hardness
2,700.00 MPa  
4
3,430.00 MPa  
3
Speed of Sound
2,680.00 m/s  
99+
4,620.00 m/s  
20
Optical Properties
  
  
Refractive Index
1.50  
36
2.10  
11
Reflectivity
59.00 %  
24
62.00 %  
21
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Bh  
W  
Isotopes
  
  
Known Isotopes
5  
32
33  
6
Electronegativity
  
  
Pauling Electronegativity
2.00  
8
2.36  
3
Sanderson Electronegativity
1.30  
25
0.98  
99+
Allred Rochow Electronegativity
1.30  
25
1.40  
20
Mulliken-Jaffe Electronegativity
1.30  
33
2.36  
3
Allen Electronegativity
2.00  
6
1.47  
33
Electropositivity
  
  
Pauling Electropositivity
2.00  
99+
1.64  
99+
Ionization Energies
  
  
1st Energy Level
742.90 kJ/mol  
23
770.00 kJ/mol  
16
2nd Energy Level
1,688.50 kJ/mol  
31
1,700.00 kJ/mol  
30
3rd Energy Level
2,566.50 kJ/mol  
99+
2,045.40 kJ/mol  
99+
4th Energy Level
3,598.90 kJ/mol  
99+
7,700.00 kJ/mol  
8
5th Energy Level
4,727.80 kJ/mol  
99+
7,700.00 kJ/mol  
17
6th Energy Level
5,991.70 kJ/mol  
99+
7,700.00 kJ/mol  
35
7th Energy level
7,226.80 kJ/mol  
34
7,700.00 kJ/mol  
29
8th Energy Level
7,100.00 kJ/mol  
33
7,700.00 kJ/mol  
29
9th Energy Level
5,800.00 kJ/mol  
99+
7,700.00 kJ/mol  
25
10th Energy Level
7,100.00 kJ/mol  
35
7,700.00 kJ/mol  
29
11th Energy Level
8,200.00 kJ/mol  
25
7,700.00 kJ/mol  
28
12th Energy Level
82,700.00 kJ/mol  
4
7,700.00 kJ/mol  
99+
13th Energy Level
7,100.00 kJ/mol  
29
7,700.00 kJ/mol  
21
14th Energy Level
8,200.00 kJ/mol  
17
770.00 kJ/mol  
99+
15th Energy Level
82,000.00 kJ/mol  
14
77,000.00 kJ/mol  
18
16th Energy Level
71,100.00 kJ/mol  
20
77,000.00 kJ/mol  
13
17th Energy Level
820.00 kJ/mol  
31
770.00 kJ/mol  
34
18th Energy Level
8,200.00 kJ/mol  
20
7,700.00 kJ/mol  
24
19th Energy Level
820.80 kJ/mol  
28
770.00 kJ/mol  
31
20th Energy Level
820.00 kJ/mol  
21
770.00 kJ/mol  
25
21st Energy Level
8,200.00 kJ/mol  
11
770.00 kJ/mol  
99+
22nd Energy Level
820.00 kJ/mol  
16
770.00 kJ/mol  
19
23rd Energy Level
8,200.00 kJ/mol  
8
770.00 kJ/mol  
99+
24th Energy Level
820.00 kJ/mol  
12
770.00 kJ/mol  
15
25th Energy Level
820.00 kJ/mol  
10
770.00 kJ/mol  
14
26th Energy Level
820.00 kJ/mol  
10
770.00 kJ/mol  
14
27th Energy Level
820.00 kJ/mol  
9
770.00 kJ/mol  
13
28th Energy Level
820.00 kJ/mol  
15
770.00 kJ/mol  
19
29th Energy Level
820.00 kJ/mol  
14
770.00 kJ/mol  
19
30th Energy Level
820.00 kJ/mol  
10
770.00 kJ/mol  
14
Electrochemical Equivalent
3.00 g/amp-hr  
21
1.14 g/amp-hr  
99+
Electron Work Function
4.90 eV  
12
4.55 eV  
18
Other Chemical Properties
Ionization, Radioactive Isotopes  
Ionization, Radioactive Isotopes, Solubility  
Atomic
Atomic Number
107  
11
74  
99+
Electron Configuration
[Rn] 5f14 6d5 7s2  
[Xe] 4f14 5d4 6s2  
Crystal Structure
Hexagonal Close Packed (HCP)  
Body Centered Cubic (BCC)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
107  
11
74  
99+
Number of Neutrons
155  
9
110  
28
Number of Electrons
107  
11
74  
99+
Radius of an Atom
  
  
Atomic Radius
128.00 pm  
99+
139.00 pm  
99+
Covalent Radius
141.00 pm  
99+
162.00 pm  
31
Van der Waals Radius
0.00 pm  
99+
200.00 pm  
35
Atomic Weight
270.00 amu  
8
183.84 amu  
37
Atomic Volume
23.70 cm3/mol  
14
9.53 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Seaborgium
  
Tantalum
  
Next Element
Hassium
  
Rhenium
  
Valence Electron Potential
27.20 (-eV)  
99+
140.00 (-eV)  
5
Lattice Constant
-  
316.52 pm  
99+
Lattice Angles
-  
π/2, π/2, π/2  
Lattice C/A Ratio
1.57  
99+
1.29  
99+
Mechanical
Density
  
  
Density At Room Temperature
37.10 g/cm3  
3
19.25 g/cm3  
16
Density When Liquid (at m.p.)
37.10 g/cm3  
3
17.60 g/cm3  
15
Tensile Strength
152.00 MPa  
24
370.00 MPa  
11
Viscosity
0.00  
25
0.00  
1
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
37
Vapor Pressure at 2000 K
0.00 (Pa)  
37
0.00 (Pa)  
99+
Elasticity properties
  
  
Shear Modulus
28.00 GPa  
32
161.00 GPa  
5
Bulk Modulus
37.00 GPa  
99+
310.00 GPa  
4
Young's Modulus
0.00 GPa  
99+
411.00 GPa  
4
Poisson Ratio
0.35  
9
0.28  
17
Other Mechanical Properties
-  
Ductile, Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
37.00  
5
19.22  
18
Magnetic Ordering
-  
Paramagnetic  
Permeability
0.00 H/m  
11
0.00 H/m  
17
Susceptibility
0.00  
24
0.00  
23
Electrical Properties
  
  
Electrical Property
-  
Superconductor  
Resistivity
6.50 nΩ·m  
99+
52.80 nΩ·m  
99+
Electrical Conductivity
0.00 106/cm Ω  
99+
0.19 106/cm Ω  
10
Electron Affinity
-  
78.60 kJ/mol  
15
Thermal
Specific Heat
0.10 J/(kg K)  
99+
0.13 J/(kg K)  
40
Molar Heat Capacity
37.10 J/mol·K  
2
24.27 J/mol·K  
99+
Thermal Conductivity
37.00 W/m·K  
36
173.00 W/m·K  
7
Critical Temperature
1,323.00 K  
99+
3,695.00 K  
1
Thermal Expansion
14.30 µm/(m·K)  
28
4.50 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
270.50 kJ/mol  
99+
799.10 kJ/mol  
1
Enthalpy of Fusion
-  
35.23 kJ/mol  
1
Enthalpy of Atomization
-  
837.00 kJ/mol  
1
Standard Molar Entropy
57.00 J/mol.K  
30
32.60 J/mol.K  
99+
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