Home
Compare Metals


Manganese vs Thallium


Thallium vs Manganese


Periodic Table

Symbol
Mn  
Tl  

Group Number
7  
11
13  
5

Period Number
4  
6  

Block
d block  
p block  

Element Family
Transition Metal  
Post-​Transition  

CAS Number
7439965  
99+
7440280  
99+

Space Group Name
I_ 43m  
P63/mmc  

Space Group Number
217.00  
5
194.00  
7

Facts

Interesting Facts
  • Manganese is an essential trace element in all forms of life.
  • Manganese metal oxidizes very easily, but it does not fuse that easily.
  
  • Compounds of Thallium metal are highly Toxic.
  • Thallium metal is being suspected as a human carcinogen.
  

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

History
  
  

Who Discovered
Johann Gottlieb Gahn  
William Crookes  

Discovery
In 1774  
In 1861  

Abundance
  
  

Abundance In Universe
0.00 %  
9
0.00 %  
33

Abundance In Sun
0.00 %  
8
0.00 %  
26

Abundance In Meteorites
0.27 %  
8
0.00 %  
99+

Abundance In Earth's Crust
0.11 %  
8
0.00 %  
99+

Abundance In Oceans
0.00 %  
13
0.00 %  
34

Abundance In Humans
0.00 %  
15
0.00 %  
24

Uses

Uses & Benefits
  • This metal is very brittle hence it mostly not used as a pure metal, but its alloys are very useful
  • Its alloy Manganese steel is extremely strong and used in railway tracks, safes, prison bars and riffle barrels.
  
  • 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
Automobile Industry, Electrical Industry, Electronic Industry  
Chemical Industry  

Medical Uses
-  
Medical Research  

Other Uses
Alloys  
Alloys  

Biological Properties
  
  

Toxicity
Toxic  
Highly Toxic  

Present in Human Body
Yes  
Yes  

In Blood
0.08 Blood/mg dm-3  
14
0.00 Blood/mg dm-3  
37

In Bone
100.00 p.p.m.  
8
0.00 p.p.m.  
38

Physical

Melting Point
1,245.00 °C  
37
303.50 °C  
99+

Boiling Point
1,962.00 °C  
99+
1,457.00 °C  
99+

Appearance
  
  

Physical State
Solid  
Solid  

Color
Silver  
Silvery White  

Luster
Metallic  
-  

Hardness
  
  

Mohs Hardness
6.00  
6
1.20  
21

Brinell Hardness
196.00 MPa  
99+
26.50 MPa  
99+

Vickers Hardness
196.00 MPa  
99+
120.00 MPa  
99+

Speed of Sound
5,150.00 m/s  
11
818.00 m/s  
99+

Optical Properties
  
  

Refractive Index
2.00  
15
1.90  
18

Reflectivity
70.00 %  
13
8.00 %  
37

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
Mn  
Tl  

Isotopes
  
  

Known Isotopes
21  
18
32  
7

Electronegativity
  
  

Pauling Electronegativity
1.55  
26
1.62  
22

Sanderson Electronegativity
2.20  
8
2.25  
6

Allred Rochow Electronegativity
1.60  
10
1.44  
18

Mulliken-Jaffe Electronegativity
1.55  
23
1.96  
11

Allen Electronegativity
1.75  
18
1.79  
16

Electropositivity
  
  

Pauling Electropositivity
2.45  
29
2.38  
33

Ionization Energies
  
  

1st Energy Level
717.30 kJ/mol  
30
589.40 kJ/mol  
99+

2nd Energy Level
1,509.00 kJ/mol  
40
1,971.00 kJ/mol  
14

3rd Energy Level
3,248.00 kJ/mol  
21
2,878.00 kJ/mol  
32

4th Energy Level
4,940.00 kJ/mol  
30
5,890.00 kJ/mol  
17

5th Energy Level
6,990.00 kJ/mol  
29
5,890.00 kJ/mol  
99+

6th Energy Level
9,220.00 kJ/mol  
22
5,890.00 kJ/mol  
99+

7th Energy level
11,500.00 kJ/mol  
16
5,890.00 kJ/mol  
99+

8th Energy Level
18,770.00 kJ/mol  
5
5,890.00 kJ/mol  
99+

9th Energy Level
21,400.00 kJ/mol  
6
5,890.00 kJ/mol  
99+

10th Energy Level
23,960.00 kJ/mol  
9
5,890.00 kJ/mol  
99+

11th Energy Level
27,590.00 kJ/mol  
10
5,890.00 kJ/mol  
99+

12th Energy Level
30,330.00 kJ/mol  
32
5,890.00 kJ/mol  
99+

13th Energy Level
33,150.00 kJ/mol  
11
5,890.00 kJ/mol  
99+

14th Energy Level
38,880.00 kJ/mol  
10
5,890.00 kJ/mol  
37

15th Energy Level
41,987.00 kJ/mol  
99+
58,900.00 kJ/mol  
99+

16th Energy Level
109,480.00 kJ/mol  
1
58,900.00 kJ/mol  
38

17th Energy Level
118,100.00 kJ/mol  
2
589.40 kJ/mol  
99+

18th Energy Level
127,100.00 kJ/mol  
3
5,890.00 kJ/mol  
99+

19th Energy Level
138,600.00 kJ/mol  
4
589.40 kJ/mol  
99+

20th Energy Level
148,500.00 kJ/mol  
6
589.00 kJ/mol  
99+

21st Energy Level
158,600.00 kJ/mol  
6
589.40 kJ/mol  
99+

22nd Energy Level
172,500.00 kJ/mol  
5
589.00 kJ/mol  
99+

23rd Energy Level
181,380.00 kJ/mol  
5
589.40 kJ/mol  
99+

24th Energy Level
650.90 kJ/mol  
34
589.40 kJ/mol  
99+

25th Energy Level
717.30 kJ/mol  
24
589.40 kJ/mol  
99+

26th Energy Level
650.90 kJ/mol  
35
589.40 kJ/mol  
99+

27th Energy Level
650.90 kJ/mol  
36
589.40 kJ/mol  
99+

28th Energy Level
650.90 kJ/mol  
99+
589.40 kJ/mol  
99+

29th Energy Level
650.90 kJ/mol  
99+
589.40 kJ/mol  
99+

30th Energy Level
650.90 kJ/mol  
38
589.40 kJ/mol  
99+

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

Electron Work Function
4.10 eV  
32
3.84 eV  
39

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

Atomic

Atomic Number
25  
99+
81  
35

Electron Configuration
[Ar] 3d5 4s2  
[Xe] 4f14 5d10 6s2 6p1  

Crystal Structure
Body Centered Cubic (BCC)  
Hexagonal Close Packed (HCP)  

Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
BCC-Crystal-Structure-.jpg#100  

Atom
  
  

Number of Protons
25  
99+
81  
35

Number of Neutrons
30  
99+
123  
21

Number of Electrons
25  
99+
81  
35

Radius of an Atom
  
  

Atomic Radius
127.00 pm  
99+
170.00 pm  
24

Covalent Radius
139.00 pm  
99+
145.00 pm  
99+

Van der Waals Radius
200.00 pm  
35
196.00 pm  
37

Atomic Weight
54.94 amu  
99+
204.38 amu  
31

Atomic Volume
1.39 cm3/mol  
99+
17.20 cm3/mol  
99+

Adjacent Atomic Numbers
  
  

Previous Element
Chromium
  
Mercury
  

Next Element
Iron
  
Lead
  

Valence Electron Potential
220.00 (-eV)  
2
9.60 (-eV)  
99+

Lattice Constant
891.25 pm  
1
345.66 pm  
99+

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

Lattice C/A Ratio
1.55  
99+
1.60  
23

Mechanical

Density
  
  

Density At Room Temperature
7.21 g/cm3  
99+
11.85 g/cm3  
33

Density When Liquid (at m.p.)
5.95 g/cm3  
99+
11.22 g/cm3  
33

Tensile Strength
370.00 MPa  
11
47.00 MPa  
39

Viscosity
0.00  
2
0.00  
22

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)  
12
16.90 (Pa)  
5

Vapor Pressure at 2000 K
0.00 (Pa)  
30
0.00 (Pa)  
38

Elasticity properties
  
  

Shear Modulus
40.00 GPa  
19
2.80 GPa  
99+

Bulk Modulus
120.00 GPa  
14
43.00 GPa  
33

Young's Modulus
198.00 GPa  
13
8.00 GPa  
99+

Poisson Ratio
0.30  
14
0.45  
2

Other Mechanical Properties
-  
Ductile, Sectile  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
7.21  
99+
11.85  
35

Magnetic Ordering
Paramagnetic  
Diamagnetic  

Permeability
0.00 H/m  
7
0.00 H/m  
17

Susceptibility
0.00  
12
0.00  
28

Electrical Properties
  
  

Electrical Property
Conductor  
Conductor  

Resistivity
1.44 nΩ·m  
99+
0.18 nΩ·m  
99+

Electrical Conductivity
0.01 106/cm Ω  
99+
0.06 106/cm Ω  
37

Electron Affinity
0.00 kJ/mol  
99+
19.20 kJ/mol  
38

Thermal

Specific Heat
0.48 J/(kg K)  
11
0.13 J/(kg K)  
40

Molar Heat Capacity
26.32 J/mol·K  
37
26.32 J/mol·K  
37

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

Critical Temperature
1,519.00 K  
40
577.00 K  
99+

Thermal Expansion
21.70 µm/(m·K)  
22
29.90 µm/(m·K)  
12

Enthalpy
  
  

Enthalpy of Vaporization
219.70 kJ/mol  
99+
162.10 kJ/mol  
99+

Enthalpy of Fusion
14.64 kJ/mol  
25
4.27 kJ/mol  
99+

Enthalpy of Atomization
280.30 kJ/mol  
99+
179.90 kJ/mol  
99+

Standard Molar Entropy
32.00 J/mol.K  
99+
64.20 J/mol.K  
20

Periodic Table >>
<< All

Compare Transition Metals

Transition Metals

Transition Metals

» More Transition Metals

Compare Transition Metals

» More Compare Transition Metals