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Properties of Bohrium and Tungsten

Bohrium
Tungsten
Properties of Tungsten & Bohrium


Physical Properties
Melting Point
Not Available   
3,410.00 °C   
1
Boiling Point
Not Available   
5,660.00 °C   
1
Hardness
  
  
Mohs Hardness
Not Available   
7.50   
2
Brinell Hardness
Not Available   
2,000.00 MPa   
4
Vickers Hardness
Not Available   
3,430.00 MPa   
1
Optical Properties
  
  
Refractive Index
Not Available   
Not Available   
Reflectivity
Not Available   
62.00 %   
13
Speed of Sound
Not Available   
4,620.00 m/s   
16
Allotropes
No   
No   
α Allotropes
Not Available   
Not Available   
β Allotropes
Not Available   
Not Available   
γ Allotropes
Not Available   
Not Available   
Chemical Properties
Chemical Formula
Bh   
W   
Isotopes
  
  
Known Isotopes
5   
32
33   
6
Electronegativity
  
  
Pauling Electronegativity
Not Available   
2.36   
2
Sanderson Electronegativity
Not Available   
0.98   
23
Allred Rochow Electronegativity
Not Available   
1.40   
19
Mulliken-Jaffe Electronegativity
Not Available   
Not Available   
Allen Electronegativity
Not Available   
1.47   
29
Electropositivity
  
  
Pauling Electropositivity
Not Available   
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   
30
1,700.00 kJ/mol   
29
3rd Energy Level
2,566.50 kJ/mol   
99+
Not Available   
Electrochemical Equivalent
Not Available   
1.14 g/amp-hr   
99+
Electron Work Function
Not Available   
4.55 eV   
13
Other Chemical Properties
?
Ionization is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes.Ionization, 
?
Radioactive metals emit particles and radiation from their nuclei. This process comes in the picture because their nuclei experience the intense conflict between two strong forces. This metal also have radioactive isotopes.Radioactive Isotopes   
?
Ionization is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes.Ionization, 
?
Radioactive metals emit particles and radiation from their nuclei. This process comes in the picture because their nuclei experience the intense conflict between two strong forces. This metal also have radioactive isotopes.Radioactive Isotopes, 
?
Solubility is a chemical property referring to the ability for a given substance, the solute, to dissolve in a solvent.Solubility   
Mechanical Properties
Density
  
  
Density At Room Temperature
37.10 g/cm3   
3
19.25 g/cm3   
16
Density When Liquid (at m.p.)
Not Available   
17.60 g/cm3   
5
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available   
Not Available   
Vapor Pressure at 2000 K
Not Available   
0.00 (Pa)   
32
Tensile Strength
Not Available   
370.00 MPa   
10
Viscosity
Not Available   
Not Available   
Elasticity properties
  
  
Shear Modulus
Not Available   
161.00 GPa   
5
Bulk Modulus
Not Available   
310.00 GPa   
4
Young's Modulus
Not Available   
411.00 GPa   
4
Poisson Ratio
Not Available   
0.28   
17
Other Mechanical Properties
Unknown   
?
Ductility of metals defines their ability to deform under tensile stress; this is often characterized by the metals ability to be stretched into a wire.Ductile, 
?
Malleability of metals defines their ability to deform under compressive stress; this is often characterized by the metals ability to form a thin sheet by hammering or rolling.Malleable   
Periodic Table
Symbol
Bh   
W   
Group Number
7   
11
6   
12
Period Number
7   
6   
Block
?
The d-block is on the middle of the periodic table and includes elements from columns 3 through 12. These elements are also known as the transition metals because they show a transitivity in their properties i.e. they show a trend in their properties.d block   
?
The d-block is on the middle of the periodic table and includes elements from columns 3 through 12. These elements are also known as the transition metals because they show a transitivity in their properties i.e. they show a trend in their properties.d block   
Element Family
?
What is Transition Metal? All transition metals are placed under the d-block from group number 3 to 12. Transition metals show characteristics like malleability, ductility and are good conductor of electricity.Transition Metal   
?
What is Transition Metal? All transition metals are placed under the d-block from group number 3 to 12. Transition metals show characteristics like malleability, ductility and are good conductor of electricity.Transition Metal   
Atomic Properties
Atomic Number
107   
11
74   
99+
Atomic Weight
270.00 amu   
8
183.84 amu   
37
Atomic Volume
Not Available   
9.53 cm3/mol   
99+
Electron Configuration
[Rn] 5f14 6d5 7s2   
[Xe] 4f14 5d4 6s2   
Valence Electron Potential
Not Available   
140.00 (-eV)   
5
Atom
  
  
Number of Protons
107   
11
74   
99+
Number of Neutrons
155   
8
110   
27
Number of Electrons
107   
11
74   
99+
Crystal Structure
?
The hexagonal crystal system consists of the 7 point groups such that all their space groups have the hexagonal lattice as underlying lattice. The hexagonal crystal family consists of the 12 point groups such that at least one of their space groups has theHexagonal Close Packed (HCP)   
?
BCC is a basis type of cubic crystal structure. In crystallography, the cubic crystals structure is a crystal system where the unit cell has a cube shaped structure. This is one of the simplest crystal structure found in crystals of metal.Body Centered Cubic (BCC)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Radius of an Atom
  
  
Atomic Radius
128.00 pm   
99+
139.00 pm   
39
Covalent Radius
141.00 pm   
99+
162.00 pm   
29
Van der Waals Radius
Not Available   
200.00 pm   
28
Lattice Constant
Not Available   
316.52 pm   
99+
Lattice Angles
NA   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
Adjacent Atomic Numbers
  
  
Next Element
Hassium
  
Rhenium
  
Previous Element
Seaborgium
  
Tantalum
  
Magnetic Properties
Electrical Properties
  
  
Resistivity
Not Available   
52.80 nΩ·m   
99+
Electrical Conductivity
Not Available   
0.19 106/cm Ω   
10
Electron Affinity
Not Available   
78.60 kJ/mol   
13
Electrical Property
Unknown   
?
Under certain conditions, superconductor metals offer zero resistance to electric current it means this type of metals will conduct electricity without any resistance.Superconductor   
Magnetic Characteristics
  
  
Specific Gravity
Not Available   
19.22   
9
Magnetic Ordering
Unknown   
?
Paramagnetic metals are slightly attracted by magnet, but they can’t retain the magnetic effect once they are removed from the magnetic field.Paramagnetic   
Permeability
Not Available   
Not Available   
Susceptibility
Not Available   
Not Available   
Thermal Properties
Specific Heat
Not Available   
0.13 J/(kg K)   
39
Thermal Conductivity
Not Available   
173.00 W/m·K   
7
Critical Temperature
Not Available   
Not Available   
Molar Heat Capacity
Not Available   
24.27 J/mol·K   
99+
Thermal Expansion
Not Available   
4.50 µm/(m·K)   
99+
Standard Molar Entropy
Not Available   
32.60 J/mol.K   
99+
Enthalpy
  
  
Enthalpy of Vaporization
Not Available   
799.10 kJ/mol   
1
Enthalpy of Fusion
Not Available   
35.23 kJ/mol   
1
Enthalpy of Atomization
Not Available   
837.00 kJ/mol   
1
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