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Titanium Thallium Comparison


Thallium Titanium comparison


Periodic Table

Symbol
Ti   
Tl   

Group Number
4   
14
13   
5

Period Number
4   
6   

Block
d block   
p block   

Element Family
Transition Metal   
Post-​Transition   

CAS Number
7440326   
99+
7440280   
99+

Space Group Name
P63/mmc   
P63/mmc   

Space Group Number
194.00   
5
194.00   
5

Facts

Interesting Facts
  • The only metal which burns in Nitrogen is Titanium.
  • Titanium is also known as corrosion resistant metal.
  
  • Compounds of Thallium metal are highly Toxic.
  • Thallium metal is being suspected as a human carcinogen.
  

Sources
Found in Minerals, Mining   
Found As a By-product, Ores of metals, Ores of Minerals   

History
  
  

Who Discovered
W. Gregor & J. Berzelius   
William Crookes   

Discovery
In 1791   
In 1861   

Abundance
  
  

Abundance In Universe
3 * 10-4 %   
9
5 * 10-9 %   
32

Abundance In Sun
~0.0004 %   
9
~0.0000001 %   
26

Abundance In Meteorites
0.05 %   
11
0.00 %   
99+

Abundance In Earth's Crust
0.66 %   
7
0.00 %   
99+

Abundance In Oceans
0.00 %   
15
0.00 %   
34

Uses

Uses & Benefits
  • Its alloys are used in spacecraft, aircraft and ammunition industry.
  • Its pipes are used in distillation plants, submarines, hulls of big ships, 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, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry   
Chemical Industry   

Medical Uses
Dentistry, 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
0.05 Blood/mg dm-3   
16
0.00 Blood/mg dm-3   
34

In Bone
Not Available   
0.00 p.p.m.   
33

Physical Properties

Melting Point
1,660.00 °C   
18
303.50 °C   
99+

Boiling Point
3,287.00 °C   
22
1,457.00 °C   
99+

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery Gray-White   
Silvery White   

Luster
Metallic   
NA   

Hardness
  
  

Mohs Hardness
6.00   
6
1.20   
20

Brinell Hardness
716.00 MPa   
15
26.50 MPa   
99+

Vickers Hardness
830.00 MPa   
14
Not Available   

Speed of Sound
5,090.00 m/s   
9
818.00 m/s   
99+

Optical Properties
  
  

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
Ti   
Tl   

Isotopes
  
  

Known Isotopes
23   
16
32   
7

Electronegativity
  
  

Pauling Electronegativity
1.54   
26
1.62   
21

Sanderson Electronegativity
1.09   
20
2.25   
5

Allred Rochow Electronegativity
1.32   
23
1.44   
17

Mulliken-Jaffe Electronegativity
Not Available   
1.96   
6

Allen Electronegativity
1.38   
32
1.79   
13

Electropositivity
  
  

Pauling Electropositivity
2.46   
28
2.38   
33

Ionization Energies
  
  

1st Energy Level
658.80 kJ/mol   
39
589.40 kJ/mol   
99+

2nd Energy Level
1,309.80 kJ/mol   
99+
1,971.00 kJ/mol   
14

3rd Energy Level
2,652.50 kJ/mol   
99+
2,878.00 kJ/mol   
32

4th Energy Level
4,174.60 kJ/mol   
32
Not Available   

5th Energy Level
9,581.00 kJ/mol   
5
Not Available   

6th Energy Level
11,533.00 kJ/mol   
6
Not Available   

7th Energy level
13,590.00 kJ/mol   
6
Not Available   

8th Energy Level
16,440.00 kJ/mol   
8
Not Available   

9th Energy Level
18,530.00 kJ/mol   
11
Not Available   

10th Energy Level
20,833.00 kJ/mol   
15
Not Available   

11th Energy Level
25,575.00 kJ/mol   
14
Not Available   

12th Energy Level
28,125.00 kJ/mol   
14
Not Available   

13th Energy Level
76,015.00 kJ/mol   
1
Not Available   

14th Energy Level
83,280.00 kJ/mol   
2
Not Available   

15th Energy Level
90,880.00 kJ/mol   
3
Not Available   

16th Energy Level
100,700.00 kJ/mol   
4
Not Available   

17th Energy Level
109,100.00 kJ/mol   
5
Not Available   

18th Energy Level
117,800.00 kJ/mol   
6
Not Available   

19th Energy Level
129,900.00 kJ/mol   
7
Not Available   

20th Energy Level
137,530.00 kJ/mol   
9
Not Available   

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

Electron Work Function
4.33 eV   
17
3.84 eV   
28

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

Atomic Properties

Atomic Number
22   
99+
81   
35

Electron Configuration
[Ar] 3d2 4s2   
[Xe] 4f14 5d10 6s2 6p1   

Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
HCP-Crystal-Structure-of-Titanium.jpg#100   
BCC-Crystal-Structure-.jpg#100   

Atom
  
  

Number of Protons
22   
99+
81   
35

Number of Neutrons
26   
99+
123   
20

Number of Electrons
22   
99+
81   
35

Radius of an Atom
  
  

Atomic Radius
147.00 pm   
34
170.00 pm   
22

Covalent Radius
160.00 pm   
30
145.00 pm   
39

Van der Waals Radius
200.00 pm   
28
196.00 pm   
30

Atomic Weight
47.87 amu   
99+
204.38 amu   
31

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

Adjacent Atomic Numbers
  
  

Previous Element
Scandium
  
Mercury
  

Next Element
Vanadium
  
Lead
  

Valence Electron Potential
95.20 (-eV)   
10
9.60 (-eV)   
99+

Lattice Constant
295.08 pm   
99+
345.66 pm   
99+

Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, 2 π/3   

Lattice C/A Ratio
Not Available   
1.60   
6

Mechanical Properties

Density
  
  

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

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

Tensile Strength
434.00 MPa   
9
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
Not Available   
16.90 (Pa)   
5

Vapor Pressure at 2000 K
0.98 (Pa)   
14
Not Available   

Elasticity properties
  
  

Shear Modulus
44.00 GPa   
17
2.80 GPa   
99+

Bulk Modulus
110.00 GPa   
15
43.00 GPa   
28

Young's Modulus
116.00 GPa   
18
8.00 GPa   
99+

Poisson Ratio
0.32   
12
0.45   
2

Other Mechanical Properties
Ductile   
Ductile, Sectile   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
4.51   
99+
11.85   
22

Magnetic Ordering
Paramagnetic   
Diamagnetic   

Electrical Properties
  
  

Electrical Property
Poor Conductor   
Conductor   

Resistivity
420.00 nΩ·m   
12
0.18 nΩ·m   
99+

Electrical Conductivity
0.02 106/cm Ω   
99+
0.06 106/cm Ω   
32

Electron Affinity
7.60 kJ/mol   
37
19.20 kJ/mol   
32

Thermal Properties

Specific Heat
0.52 J/(kg K)   
9
0.13 J/(kg K)   
39

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

Thermal Conductivity
21.90 W/m·K   
99+
46.10 W/m·K   
33

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
8.60 µm/(m·K)   
99+
29.90 µm/(m·K)   
12

Enthalpy
  
  

Enthalpy of Vaporization
429.00 kJ/mol   
15
162.10 kJ/mol   
99+

Enthalpy of Fusion
15.48 kJ/mol   
19
4.27 kJ/mol   
99+

Enthalpy of Atomization
468.60 kJ/mol   
15
179.90 kJ/mol   
99+

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

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