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Aluminium vs Thallium


Thallium vs Aluminium


Periodic Table

Symbol
Al   
Tl   

Group Number
13   
5
13   
5

Period Number
3   
6   

Block
p block   
p block   

Element Family
Post-​Transition   
Post-​Transition   

CAS Number
7429905   
99+
7440280   
99+

Space Group Name
Fm_ 3m   
P63/mmc   

Space Group Number
225.00   
2
194.00   
5

Facts

Interesting Facts
  • Aluminum’s abundance percentage is more as it is found in more than 260 minerals.
  • Pure Aluminum always reacts with oxygen rapidly.
  • It is a good conductor of heat and electricity and used in transmission lines.
  
  • Compounds of Thallium metal are highly Toxic.
  • Thallium metal is being suspected as a human carcinogen.
  

Sources
By Electrolysis Process, Earth's crust, Mining   
Found As a By-product, Ores of metals, Ores of Minerals   

History
  
  

Who Discovered
Hans Christian Oersted   
William Crookes   

Discovery
In 1825   
In 1861   

Abundance
  
  

Abundance In Universe
5 * 10-3 %   
5
5 * 10-9 %   
32

Abundance In Sun
~0.006 %   
5
~0.0000001 %   
26

Abundance In Meteorites
0.91 %   
5
0.00 %   
99+

Abundance In Earth's Crust
8.10 %   
1
0.00 %   
99+

Abundance In Oceans
0.00 %   
6
0.00 %   
34

Abundance In Humans
0.00 %   
10
Not Available   

Uses

Uses & Benefits
  • Aluminum is used in a various products; for example, cans, foils, kitchen utensils, window frames, beer kegs and aero plane parts, automobile parts, etc.
  
  • Thallium is a toxic metal and hence it has limited uses. Thallium metal is mostly used for producing photoelectric cells.
  • In thermometer’s mercury alloy has 8% of thallium, as it has a melting point lower than 20°C.
  

Industrial Uses
Aerospace Industry, Ammunition Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry   
Chemical Industry   

Medical Uses
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing   
Medical Research   

Other Uses
Alloys, Jewellery, Sculptures, Statues   
Alloys   

Biological Properties
  
  

Toxicity
Non Toxic   
Highly Toxic   

Present in Human Body
Yes   
Yes   

In Blood
0.39 Blood/mg dm-3   
9
0.00 Blood/mg dm-3   
34

In Bone
27.00 p.p.m.   
11
0.00 p.p.m.   
33

Physical Properties

Melting Point
660.37 °C   
99+
303.50 °C   
99+

Boiling Point
2,467.00 °C   
99+
1,457.00 °C   
99+

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery Gray   
Silvery White   

Luster
Metallic   
NA   

Hardness
  
  

Mohs Hardness
2.75   
13
1.20   
20

Brinell Hardness
160.00 MPa   
99+
26.50 MPa   
99+

Vickers Hardness
160.00 MPa   
35
Not Available   

Speed of Sound
5,000.00 m/s   
10
818.00 m/s   
99+

Optical Properties
  
  

Reflectivity
71.00 %   
10
Not Available   

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
Al   
Tl   

Isotopes
  
  

Known Isotopes
11   
27
32   
7

Electronegativity
  
  

Pauling Electronegativity
1.61   
22
1.62   
21

Sanderson Electronegativity
1.71   
13
2.25   
5

Allred Rochow Electronegativity
1.47   
14
1.44   
17

Mulliken-Jaffe Electronegativity
1.83   
8
1.96   
6

Allen Electronegativity
1.61   
20
1.79   
13

Electropositivity
  
  

Pauling Electropositivity
2.39   
32
2.38   
33

Ionization Energies
  
  

1st Energy Level
577.50 kJ/mol   
99+
589.40 kJ/mol   
99+

2nd Energy Level
1,816.70 kJ/mol   
19
1,971.00 kJ/mol   
14

3rd Energy Level
2,744.80 kJ/mol   
38
2,878.00 kJ/mol   
32

4th Energy Level
11,577.00 kJ/mol   
3
Not Available   

5th Energy Level
14,842.00 kJ/mol   
2
Not Available   

6th Energy Level
18,379.00 kJ/mol   
2
Not Available   

7th Energy level
23,326.00 kJ/mol   
2
Not Available   

8th Energy Level
27,465.00 kJ/mol   
2
Not Available   

9th Energy Level
31,853.00 kJ/mol   
2
Not Available   

10th Energy Level
38,473.00 kJ/mol   
4
Not Available   

11th Energy Level
42,647.00 kJ/mol   
5
Not Available   

Electrochemical Equivalent
0.34 g/amp-hr   
99+
7.63 g/amp-hr   
2

Electron Work Function
4.28 eV   
19
3.84 eV   
28

Other Chemical Properties
Chemical Stability, Ionization, Radioactive Isotopes   
Corrosion, Ionization, Radioactive Isotopes, Solubility   

Atomic Properties

Atomic Number
13   
99+
81   
35

Electron Configuration
[Ne] 3s2 3p1   
[Xe] 4f14 5d10 6s2 6p1   

Crystal Structure
Face Centered Cubic (FCC)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
FCC-Crystal-Structure-of-Aluminium.jpg#100   
BCC-Crystal-Structure-.jpg#100   

Atom
  
  

Number of Protons
13   
99+
81   
35

Number of Neutrons
14   
99+
123   
20

Number of Electrons
13   
99+
81   
35

Radius of an Atom
  
  

Atomic Radius
143.00 pm   
37
170.00 pm   
22

Covalent Radius
121.00 pm   
99+
145.00 pm   
39

Van der Waals Radius
184.00 pm   
34
196.00 pm   
30

Atomic Weight
26.98 amu   
99+
204.38 amu   
31

Atomic Volume
10.00 cm3/mol   
99+
17.20 cm3/mol   
31

Adjacent Atomic Numbers
  
  

Previous Element
Magnesium
  
Mercury
  

Next Element
Potassium
  
Lead
  

Valence Electron Potential
80.70 (-eV)   
17
9.60 (-eV)   
99+

Lattice Constant
404.95 pm   
22
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

Mechanical Properties

Density
  
  

Density At Room Temperature
2.70 g/cm3   
99+
11.85 g/cm3   
31

Density When Liquid (at m.p.)
2.38 g/cm3   
99+
11.22 g/cm3   
13

Tensile Strength
40.00 MPa   
19
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)   
18
16.90 (Pa)   
5

Elasticity properties
  
  

Shear Modulus
26.00 GPa   
29
2.80 GPa   
99+

Bulk Modulus
76.00 GPa   
18
43.00 GPa   
28

Young's Modulus
70.00 GPa   
28
8.00 GPa   
99+

Poisson Ratio
0.35   
9
0.45   
2

Other Mechanical Properties
Ductile, Malleable   
Ductile, Sectile   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
2.72   
99+
11.85   
22

Magnetic Ordering
Paramagnetic   
Diamagnetic   

Permeability
0.00 H/m   
4
Not Available   

Susceptibility
0.00   
3
Not Available   

Electrical Properties
  
  

Electrical Property
Conductor   
Conductor   

Resistivity
28.20 nΩ·m   
99+
0.18 nΩ·m   
99+

Electrical Conductivity
0.38 106/cm Ω   
4
0.06 106/cm Ω   
32

Electron Affinity
42.50 kJ/mol   
26
19.20 kJ/mol   
32

Thermal Properties

Specific Heat
0.90 J/(kg K)   
5
0.13 J/(kg K)   
39

Molar Heat Capacity
24.20 J/mol·K   
99+
26.32 J/mol·K   
29

Thermal Conductivity
237.00 W/m·K   
4
46.10 W/m·K   
33

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
23.10 µm/(m·K)   
17
29.90 µm/(m·K)   
12

Enthalpy
  
  

Enthalpy of Vaporization
293.70 kJ/mol   
31
162.10 kJ/mol   
99+

Enthalpy of Fusion
10.67 kJ/mol   
35
4.27 kJ/mol   
99+

Enthalpy of Atomization
322.20 kJ/mol   
31
179.90 kJ/mol   
99+

Standard Molar Entropy
28.30 J/mol.K   
99+
64.20 J/mol.K   
19

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