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Properties of Tungsten and Thallium

Tungsten
Thallium
Properties of Thallium & Tungsten


Physical Properties
Melting Point
3,410.00 °C   
1
303.50 °C   
99+
Boiling Point
5,660.00 °C   
1
1,457.00 °C   
99+
Hardness
  
  
Mohs Hardness
7.50   
2
1.20   
20
Brinell Hardness
2,000.00 MPa   
4
26.50 MPa   
99+
Vickers Hardness
3,430.00 MPa   
1
Not Available   
Optical Properties
  
  
Refractive Index
Not Available   
Not Available   
Reflectivity
62.00 %   
13
Not Available   
Speed of Sound
4,620.00 m/s   
16
818.00 m/s   
99+
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
W   
Tl   
Isotopes
  
  
Known Isotopes
33   
6
32   
7
Electronegativity
  
  
Pauling Electronegativity
2.36   
2
1.62   
21
Sanderson Electronegativity
0.98   
23
2.25   
5
Allred Rochow Electronegativity
1.40   
19
1.44   
17
Mulliken-Jaffe Electronegativity
Not Available   
1.96   
6
Allen Electronegativity
1.47   
29
1.79   
13
Electropositivity
  
  
Pauling Electropositivity
1.64   
99+
2.38   
33
Ionization Energies
  
  
1st Energy Level
770.00 kJ/mol   
16
589.40 kJ/mol   
99+
2nd Energy Level
1,700.00 kJ/mol   
29
1,971.00 kJ/mol   
14
3rd Energy Level
Not Available   
2,878.00 kJ/mol   
32
Electrochemical Equivalent
1.14 g/amp-hr   
99+
7.63 g/amp-hr   
2
Electron Work Function
4.55 eV   
13
3.84 eV   
28
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, 
?
Solubility is a chemical property referring to the ability for a given substance, the solute, to dissolve in a solvent.Solubility   
?
Corrosion is a process which converts refined metals to their more stable forms, for example, its oxide and hydroxide. This process of metals getting corroded is a gradual destruction of metals by chemical reactions.Corrosion, 
?
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
19.25 g/cm3   
16
11.85 g/cm3   
31
Density When Liquid (at m.p.)
17.60 g/cm3   
5
11.22 g/cm3   
13
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available   
16.90 (Pa)   
5
Vapor Pressure at 2000 K
0.00 (Pa)   
32
Not Available   
Tensile Strength
370.00 MPa   
10
Not Available   
Viscosity
Not Available   
Not Available   
Elasticity properties
  
  
Shear Modulus
161.00 GPa   
5
2.80 GPa   
99+
Bulk Modulus
310.00 GPa   
4
43.00 GPa   
28
Young's Modulus
411.00 GPa   
4
8.00 GPa   
99+
Poisson Ratio
0.28   
17
0.45   
2
Other Mechanical Properties
?
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   
?
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, 
?
Sectility is the ability to be cut into pieces. Metals and paper are sectile.Sectile   
Periodic Table
Symbol
W   
Tl   
Group Number
6   
12
13   
5
Period Number
6   
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 p-block is on the right side of the periodic table and includes elements from the six columns beginning with column 13 and ending with column 18. Helium, though being in the top of group 18, is not included in the p-block.p 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   
?
All post transition metals are placed in group number 13, 14 and 15 of periodic table. In fact, they are located between Transition Metals and Metalloids. Post transition metals have very poor mechanical properties.Post-​Transition   
Atomic Properties
Atomic Number
74   
99+
81   
35
Atomic Weight
183.84 amu   
37
204.38 amu   
31
Atomic Volume
9.53 cm3/mol   
99+
17.20 cm3/mol   
31
Electron Configuration
[Xe] 4f14 5d4 6s2   
[Xe] 4f14 5d10 6s2 6p1   
Valence Electron Potential
140.00 (-eV)   
5
9.60 (-eV)   
99+
Atom
  
  
Number of Protons
74   
99+
81   
35
Number of Neutrons
110   
27
123   
20
Number of Electrons
74   
99+
81   
35
Crystal Structure
?
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)   
?
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)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Radius of an Atom
  
  
Atomic Radius
139.00 pm   
39
170.00 pm   
22
Covalent Radius
162.00 pm   
29
145.00 pm   
39
Van der Waals Radius
200.00 pm   
28
196.00 pm   
30
Lattice Constant
316.52 pm   
99+
345.66 pm   
99+
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.60   
6
Adjacent Atomic Numbers
  
  
Next Element
Rhenium
  
Lead
  
Previous Element
Tantalum
  
Mercury
  
Magnetic Properties
Electrical Properties
  
  
Resistivity
52.80 nΩ·m   
99+
0.18 nΩ·m   
99+
Electrical Conductivity
0.19 106/cm Ω   
10
0.06 106/cm Ω   
32
Electron Affinity
78.60 kJ/mol   
13
19.20 kJ/mol   
32
Electrical Property
?
Under certain conditions, superconductor metals offer zero resistance to electric current it means this type of metals will conduct electricity without any resistance.Superconductor   
?
Conductor metals have very low resistance to electric currents. They can easily conduct electric current through them.Conductor   
Magnetic Characteristics
  
  
Specific Gravity
19.22   
9
11.85   
22
Magnetic Ordering
?
Paramagnetic metals are slightly attracted by magnet, but they can’t retain the magnetic effect once they are removed from the magnetic field.Paramagnetic   
?
Diamagnetic metals produce a magnetic field opposite to the applied magnetic field. Thus, they are repelled by magnets and show magnetic nature.Diamagnetic   
Permeability
Not Available   
Not Available   
Susceptibility
Not Available   
Not Available   
Thermal Properties
Specific Heat
0.13 J/(kg K)   
39
0.13 J/(kg K)   
39
Thermal Conductivity
173.00 W/m·K   
7
46.10 W/m·K   
33
Critical Temperature
Not Available   
Not Available   
Molar Heat Capacity
24.27 J/mol·K   
99+
26.32 J/mol·K   
29
Thermal Expansion
4.50 µm/(m·K)   
99+
29.90 µm/(m·K)   
12
Standard Molar Entropy
32.60 J/mol.K   
99+
64.20 J/mol.K   
19
Enthalpy
  
  
Enthalpy of Vaporization
799.10 kJ/mol   
1
162.10 kJ/mol   
99+
Enthalpy of Fusion
35.23 kJ/mol   
1
4.27 kJ/mol   
99+
Enthalpy of Atomization
837.00 kJ/mol   
1
179.90 kJ/mol   
99+
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