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Magnesium vs Zinc


Zinc vs Magnesium


Periodic Table

Symbol
Mg  
Zn  

Group Number
2  
16
12  
6

Period Number
3  
4  

Block
s block  
d block  

Element Family
Alkaline Earth  
Transition Metal  

CAS Number
7439954  
99+
7440666  
24

Space Group Name
P63/mmc  
P63/mmc  

Space Group Number
194.00  
7
194.00  
7

Facts

Interesting Facts
  • Magnesium ions are present in every chlorophyll of every green plant .
  • Controlling Magnesium fire by pouring water on it will result in explosions.
  
  • 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
By Electrolysis Process, In Ocean, Mining  
Earth's crust, Found in Minerals, Mining, Ores of Minerals  

History
  
  

Who Discovered
Joseph Black  
Indian metallurgists  

Discovery
In 1755  
Before 1000 BCE  

Abundance
  
  

Abundance In Universe
0.06 %  
3
0.00 %  
12

Abundance In Sun
0.07 %  
2
0.00 %  
10

Abundance In Meteorites
12.00 %  
2
0.02 %  
12

Abundance In Earth's Crust
2.90 %  
4
0.01 %  
16

Abundance In Oceans
0.13 %  
2
0.00 %  
10

Abundance In Humans
0.03 %  
5
0.00 %  
7

Uses

Uses & Benefits
  • Magnesium aluminum alloy improves the mechanical strength and welding characteristics and hence it is used in aeroplane and car manufacturing.
  • It is also used to remove sulfur from the molten iron and steel.
  
  • 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
Aerospace Industry, Ammunition Industry, Automobile Industry, Chemical Industry, Pharmaceutical Industry  
Electrical Industry, Electronic Industry  

Medical Uses
-  
Pharmaceutical Industry  

Other Uses
Surgical Instruments Manufacturing  
Alloys  

Biological Properties
  
  

Toxicity
Non Toxic  
Highly Toxic  

Present in Human Body
Yes  
Yes  

In Blood
37.80 Blood/mg dm-3  
5
7.00 Blood/mg dm-3  
6

In Bone
1,800.00 p.p.m.  
4
170.00 p.p.m.  
6

Physical

Melting Point
650.00 °C  
99+
419.58 °C  
99+

Boiling Point
1,107.00 °C  
99+
907.00 °C  
99+

Appearance
  
  

Physical State
Solid  
Solid  

Color
Gray  
Silvery Gray  

Luster
-  
Metallic  

Hardness
  
  

Mohs Hardness
2.50  
15
2.50  
15

Brinell Hardness
260.00 MPa  
99+
327.00 MPa  
39

Vickers Hardness
260.00 MPa  
99+
207.00 MPa  
99+

Speed of Sound
4,940.00 m/s  
15
3,850.00 m/s  
25

Optical Properties
  
  

Refractive Index
1.49  
37
1.00  
99+

Reflectivity
74.00 %  
9
80.00 %  
7

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
Mg  
Zn  

Isotopes
  
  

Known Isotopes
15  
24
25  
14

Electronegativity
  
  

Pauling Electronegativity
1.31  
32
1.65  
20

Sanderson Electronegativity
1.32  
24
2.23  
7

Allred Rochow Electronegativity
1.23  
26
1.66  
8

Mulliken-Jaffe Electronegativity
1.37  
30
1.65  
20

Allen Electronegativity
1.29  
99+
1.59  
25

Electropositivity
  
  

Pauling Electropositivity
2.69  
23
2.35  
35

Ionization Energies
  
  

1st Energy Level
737.70 kJ/mol  
24
906.40 kJ/mol  
6

2nd Energy Level
1,450.70 kJ/mol  
99+
1,733.30 kJ/mol  
28

3rd Energy Level
7,732.70 kJ/mol  
5
3,833.00 kJ/mol  
12

4th Energy Level
10,542.50 kJ/mol  
4
5,731.00 kJ/mol  
20

5th Energy Level
13,630.00 kJ/mol  
3
7,970.00 kJ/mol  
15

6th Energy Level
18,020.00 kJ/mol  
3
10,400.00 kJ/mol  
15

7th Energy level
21,711.00 kJ/mol  
3
12,900.00 kJ/mol  
9

8th Energy Level
25,661.00 kJ/mol  
3
16,800.00 kJ/mol  
6

9th Energy Level
31,653.00 kJ/mol  
3
19,600.00 kJ/mol  
8

10th Energy Level
35,458.00 kJ/mol  
5
23,000.00 kJ/mol  
10

11th Energy Level
169,988.00 kJ/mol  
1
26,400.00 kJ/mol  
11

12th Energy Level
189,368.00 kJ/mol  
1
29,990.00 kJ/mol  
33

13th Energy Level
7,370.00 kJ/mol  
24
40,490.00 kJ/mol  
5

14th Energy Level
737.70 kJ/mol  
99+
43,800.00 kJ/mol  
6

15th Energy Level
73,700.00 kJ/mol  
21
47,300.00 kJ/mol  
99+

16th Energy Level
73,770.00 kJ/mol  
16
52,300.00 kJ/mol  
99+

17th Energy Level
737.70 kJ/mol  
37
55,900.00 kJ/mol  
10

18th Energy Level
7,370.00 kJ/mol  
27
59,700.00 kJ/mol  
11

19th Energy Level
737.70 kJ/mol  
34
67,300.00 kJ/mol  
10

20th Energy Level
737.00 kJ/mol  
28
171,200.00 kJ/mol  
1

21st Energy Level
737.70 kJ/mol  
99+
179,100.00 kJ/mol  
1

22nd Energy Level
738.00 kJ/mol  
22
906.00 kJ/mol  
9

23rd Energy Level
737.70 kJ/mol  
99+
906.40 kJ/mol  
37

24th Energy Level
737.70 kJ/mol  
20
906.40 kJ/mol  
5

25th Energy Level
737.70 kJ/mol  
20
906.40 kJ/mol  
4

26th Energy Level
737.70 kJ/mol  
20
906.40 kJ/mol  
4

27th Energy Level
737.70 kJ/mol  
19
906.40 kJ/mol  
3

28th Energy Level
737.70 kJ/mol  
25
906.40 kJ/mol  
6

29th Energy Level
737.70 kJ/mol  
26
906.40 kJ/mol  
7

30th Energy Level
737.70 kJ/mol  
20
906.40 kJ/mol  
4

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

Electron Work Function
3.66 eV  
40
4.33 eV  
24

Other Chemical Properties
Corrosion, Highly Inflammable, Ionization, Solubility  
Anti Corrosion, Chemical Stability, Ionization, Radioactive Isotopes  

Atomic

Atomic Number
12  
99+
30  
99+

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

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

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

Atom
  
  

Number of Protons
12  
99+
30  
99+

Number of Neutrons
12  
99+
35  
99+

Number of Electrons
12  
99+
30  
99+

Radius of an Atom
  
  

Atomic Radius
160.00 pm  
29
134.00 pm  
99+

Covalent Radius
141.00 pm  
99+
122.00 pm  
99+

Van der Waals Radius
173.00 pm  
99+
139.00 pm  
99+

Atomic Weight
24.31 amu  
99+
65.38 amu  
99+

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

Adjacent Atomic Numbers
  
  

Previous Element
Sodium
  
Copper
  

Next Element
Aluminium
  
Gallium
  

Valence Electron Potential
40.00 (-eV)  
99+
38.90 (-eV)  
99+

Lattice Constant
320.94 pm  
99+
266.49 pm  
99+

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

Lattice C/A Ratio
1.62  
15
1.86  
4

Mechanical

Density
  
  

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

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

Tensile Strength
150.00 MPa  
25
120.00 MPa  
27

Viscosity
0.00  
24
0.00  
7

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)  
22
0.00 (Pa)  
37

Vapor Pressure at 2000 K
0.00 (Pa)  
30
0.00 (Pa)  
37

Elasticity properties
  
  

Shear Modulus
17.00 GPa  
99+
43.00 GPa  
18

Bulk Modulus
45.00 GPa  
29
70.00 GPa  
20

Young's Modulus
45.00 GPa  
99+
108.00 GPa  
21

Poisson Ratio
0.29  
15
0.25  
24

Other Mechanical Properties
-  
-  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
1.74  
99+
6.90  
99+

Magnetic Ordering
Paramagnetic  
Diamagnetic  

Permeability
0.00 H/m  
8
0.00 H/m  
16

Susceptibility
0.00  
33
0.00  
6

Electrical Properties
  
  

Electrical Property
Conductor  
Conductor  

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

Electrical Conductivity
0.23 106/cm Ω  
7
0.17 106/cm Ω  
12

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

Thermal

Specific Heat
1.02 J/(kg K)  
4
0.39 J/(kg K)  
14

Molar Heat Capacity
24.87 J/mol·K  
99+
25.47 J/mol·K  
99+

Thermal Conductivity
156.00 W/m·K  
8
116.00 W/m·K  
14

Critical Temperature
923.00 K  
99+
692.00 K  
99+

Thermal Expansion
24.80 µm/(m·K)  
15
30.20 µm/(m·K)  
11

Enthalpy
  
  

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

Enthalpy of Fusion
8.95 kJ/mol  
99+
7.32 kJ/mol  
99+

Enthalpy of Atomization
148.50 kJ/mol  
99+
129.70 kJ/mol  
99+

Standard Molar Entropy
32.70 J/mol.K  
99+
41.60 J/mol.K  
99+

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