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Manganese vs Zinc


Zinc vs Manganese


Periodic Table

Symbol
Mn   
Zn   

Group Number
7   
11
12   
6

Period Number
4   
4   

Block
d block   
d block   

Element Family
Transition Metal   
Transition Metal   

CAS Number
7439965   
99+
7440666   
24

Space Group Name
I_ 43m   
P63/mmc   

Space Group Number
217.00   
4
194.00   
5

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.
  
  • Zinc metal found (obtain) in many forms like granules, foil, dust and in a powder form.
  • The leading producers of Zinc metal are Australia, Canada, China, U.S.A and Peru.
  

Sources
Found in Minerals, Mining, Ores of Minerals   
Earth's crust, Found in Minerals, Mining, Ores of Minerals   

History
  
  

Who Discovered
Johann Gottlieb Gahn   
Indian metallurgists   

Discovery
In 1774   
Before 1000 BCE   

Abundance
  
  

Abundance In Universe
8 * 10-4 %   
8
3 * 10-5 %   
11

Abundance In Sun
~0.001 %   
8
~0.0002 %   
10

Abundance In Meteorites
0.27 %   
8
0.02 %   
12

Abundance In Earth's Crust
0.11 %   
8
0.01 %   
16

Abundance In Oceans
0.00 %   
13
0.00 %   
10

Abundance In Humans
0.00 %   
13
0.00 %   
6

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.
  
  • It is mainly used for Galvanizing other metals.
  • It is also used for manufacturing die-casting and it is very essential for automobile industry.
  

Industrial Uses
Automobile Industry, Electrical Industry, Electronic Industry   
Electrical Industry, Electronic Industry   

Medical Uses
NA   
Pharmaceutical Industry   

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
7.00 Blood/mg dm-3   
6

In Bone
100.00 p.p.m.   
8
170.00 p.p.m.   
6

Physical Properties

Melting Point
1,245.00 °C   
37
419.58 °C   
99+

Boiling Point
1,962.00 °C   
99+
907.00 °C   
99+

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silver   
Silvery Gray   

Luster
Metallic   
Metallic   

Hardness
  
  

Mohs Hardness
6.00   
6
2.50   
14

Brinell Hardness
196.00 MPa   
99+
327.00 MPa   
32

Speed of Sound
5,150.00 m/s   
7
3,850.00 m/s   
18

Optical Properties
  
  

Refractive Index
Not Available   
1.00   
2

Reflectivity
Not Available   
80.00 %   
5

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
Mn   
Zn   

Isotopes
  
  

Known Isotopes
21   
18
25   
14

Electronegativity
  
  

Pauling Electronegativity
1.55   
25
1.65   
19

Sanderson Electronegativity
2.20   
7
2.23   
6

Allred Rochow Electronegativity
1.60   
9
1.66   
7

Mulliken-Jaffe Electronegativity
Not Available   
1.65   
11

Allen Electronegativity
1.75   
15
1.59   
22

Electropositivity
  
  

Pauling Electropositivity
2.45   
29
2.35   
35

Ionization Energies
  
  

1st Energy Level
717.30 kJ/mol   
30
906.40 kJ/mol   
6

2nd Energy Level
1,509.00 kJ/mol   
39
1,733.30 kJ/mol   
27

3rd Energy Level
3,248.00 kJ/mol   
21
3,833.00 kJ/mol   
12

4th Energy Level
4,940.00 kJ/mol   
20
5,731.00 kJ/mol   
11

5th Energy Level
6,990.00 kJ/mol   
17
7,970.00 kJ/mol   
9

6th Energy Level
9,220.00 kJ/mol   
16
10,400.00 kJ/mol   
9

7th Energy level
11,500.00 kJ/mol   
16
12,900.00 kJ/mol   
9

8th Energy Level
18,770.00 kJ/mol   
5
16,800.00 kJ/mol   
6

9th Energy Level
21,400.00 kJ/mol   
6
19,600.00 kJ/mol   
8

10th Energy Level
23,960.00 kJ/mol   
9
23,000.00 kJ/mol   
10

11th Energy Level
27,590.00 kJ/mol   
10
26,400.00 kJ/mol   
11

12th Energy Level
30,330.00 kJ/mol   
10
29,990.00 kJ/mol   
11

13th Energy Level
33,150.00 kJ/mol   
11
40,490.00 kJ/mol   
5

14th Energy Level
38,880.00 kJ/mol   
10
43,800.00 kJ/mol   
6

15th Energy Level
41,987.00 kJ/mol   
13
47,300.00 kJ/mol   
8

16th Energy Level
109,480.00 kJ/mol   
1
52,300.00 kJ/mol   
9

17th Energy Level
118,100.00 kJ/mol   
2
55,900.00 kJ/mol   
10

18th Energy Level
127,100.00 kJ/mol   
3
59,700.00 kJ/mol   
11

19th Energy Level
138,600.00 kJ/mol   
4
67,300.00 kJ/mol   
10

20th Energy Level
148,500.00 kJ/mol   
6
171,200.00 kJ/mol   
1

21st Energy Level
158,600.00 kJ/mol   
6
179,100.00 kJ/mol   
1

22nd Energy Level
172,500.00 kJ/mol   
5
Not Available   

23rd Energy Level
181,380.00 kJ/mol   
5
Not Available   

Electrochemical Equivalent
0.29 g/amp-hr   
99+
1.22 g/amp-hr   
99+

Electron Work Function
4.10 eV   
25
4.33 eV   
17

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

Atomic Properties

Atomic Number
25   
99+
30   
99+

Electron Configuration
[Ar] 3d5 4s2   
[Ar] 3d10 4s2   

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

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

Atom
  
  

Number of Protons
25   
99+
30   
99+

Number of Neutrons
30   
99+
35   
99+

Number of Electrons
25   
99+
30   
99+

Radius of an Atom
  
  

Atomic Radius
127.00 pm   
99+
134.00 pm   
99+

Covalent Radius
139.00 pm   
99+
122.00 pm   
99+

Van der Waals Radius
200.00 pm   
28
139.00 pm   
99+

Atomic Weight
54.94 amu   
99+
65.38 amu   
99+

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

Adjacent Atomic Numbers
  
  

Previous Element
Chromium
  
Copper
  

Next Element
Iron
  
Gallium
  

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

Lattice Constant
891.25 pm   
1
266.49 pm   
99+

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

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
7.21 g/cm3   
99+
7.14 g/cm3   
99+

Density When Liquid (at m.p.)
5.95 g/cm3   
99+
6.57 g/cm3   
37

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)   
12
Not Available   

Elasticity properties
  
  

Shear Modulus
Not Available   
43.00 GPa   
18

Bulk Modulus
120.00 GPa   
14
70.00 GPa   
19

Young's Modulus
198.00 GPa   
12
108.00 GPa   
19

Poisson Ratio
Not Available   
0.25   
24

Other Mechanical Properties
NA   
NA   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
7.21   
99+
6.90   
99+

Magnetic Ordering
Paramagnetic   
Diamagnetic   

Electrical Properties
  
  

Electrical Property
Conductor   
Conductor   

Resistivity
1.44 nΩ·m   
99+
59.00 nΩ·m   
40

Electrical Conductivity
0.01 106/cm Ω   
99+
0.17 106/cm Ω   
12

Electron Affinity
0.00 kJ/mol   
40
0.00 kJ/mol   
40

Thermal Properties

Specific Heat
0.48 J/(kg K)   
11
0.39 J/(kg K)   
14

Molar Heat Capacity
26.32 J/mol·K   
29
25.47 J/mol·K   
39

Thermal Conductivity
7.81 W/m·K   
99+
116.00 W/m·K   
14

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
21.70 µm/(m·K)   
21
30.20 µm/(m·K)   
11

Enthalpy
  
  

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

Enthalpy of Fusion
14.64 kJ/mol   
23
7.32 kJ/mol   
99+

Enthalpy of Atomization
280.30 kJ/mol   
38
129.70 kJ/mol   
99+

Standard Molar Entropy
32.00 J/mol.K   
99+
41.60 J/mol.K   
36

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