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Platinum Magnesium Comparison


Magnesium Platinum comparison


Periodic Table

Symbol
Pt  
Mg  

Group Number
10  
8
2  
16

Period Number
6  
3  

Block
d block  
s block  

Element Family
Transition Metal  
Alkaline Earth  

CAS Number
7440064  
99+
7439954  
99+

Space Group Name
Fm_ 3m  
P63/mmc  

Space Group Number
225.00  
3
194.00  
7

Facts

Interesting Facts
  • Platinum is the rarest metal from the Precious metal categories..
  • Commercially Platinum is produced as a byproduct in ores of nickel.
  
  • Magnesium ions are present in every chlorophyll of every green plant .
  • Controlling Magnesium fire by pouring water on it will result in explosions.
  

Sources
Mining, Ores of metals, Ores of Minerals  
By Electrolysis Process, In Ocean, Mining  

History
  
  

Who Discovered
Antonio de Ulloa  
Joseph Black  

Discovery
In 1735  
In 1755  

Abundance
  
  

Abundance In Universe
0.00 %  
20
0.06 %  
3

Abundance In Sun
0.00 %  
19
0.07 %  
2

Abundance In Meteorites
0.00 %  
25
12.00 %  
2

Abundance In Earth's Crust
0.00 %  
99+
2.90 %  
4

Abundance In Oceans
-  
0.13 %  
2

Abundance In Humans
0.00 %  
24
0.03 %  
5

Uses

Uses & Benefits
  • Platinum metal is mainly used in jewellery.
  • Platinum is used as an industrial catalyst in production of nitric acid, silicone and benzene.
  
  • 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.
  

Industrial Uses
Aerospace Industry, Chemical Industry  
Aerospace Industry, Ammunition Industry, Automobile Industry, Chemical Industry, Pharmaceutical Industry  

Medical Uses
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing  
-  

Other Uses
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues  
Surgical Instruments Manufacturing  

Biological Properties
  
  

Toxicity
Non Toxic  
Non Toxic  

Present in Human Body
No  
Yes  

In Blood
0.00 Blood/mg dm-3  
37
37.80 Blood/mg dm-3  
5

In Bone
0.00 p.p.m.  
99+
1,800.00 p.p.m.  
4

Physical

Melting Point
1,772.00 °C  
16
650.00 °C  
99+

Boiling Point
3,827.00 °C  
15
1,107.00 °C  
99+

Appearance
  
  

Physical State
Solid  
Solid  

Color
Silvery White  
Gray  

Luster
Metallic  
-  

Hardness
  
  

Mohs Hardness
3.50  
12
2.50  
15

Brinell Hardness
300.00 MPa  
99+
260.00 MPa  
99+

Vickers Hardness
400.00 MPa  
99+
260.00 MPa  
99+

Speed of Sound
2,800.00 m/s  
99+
4,940.00 m/s  
15

Optical Properties
  
  

Refractive Index
2.41  
6
1.49  
37

Reflectivity
73.00 %  
10
74.00 %  
9

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
Pt  
Mg  

Isotopes
  
  

Known Isotopes
35  
4
15  
24

Electronegativity
  
  

Pauling Electronegativity
2.28  
4
1.31  
32

Sanderson Electronegativity
2.28  
5
1.32  
24

Allred Rochow Electronegativity
1.44  
18
1.23  
26

Mulliken-Jaffe Electronegativity
2.20  
6
1.37  
30

Allen Electronegativity
1.72  
19
1.29  
99+

Electropositivity
  
  

Pauling Electropositivity
1.72  
99+
2.69  
23

Ionization Energies
  
  

1st Energy Level
870.00 kJ/mol  
10
737.70 kJ/mol  
24

2nd Energy Level
1,791.00 kJ/mol  
22
1,450.70 kJ/mol  
99+

3rd Energy Level
2,277.00 kJ/mol  
99+
7,732.70 kJ/mol  
5

4th Energy Level
8,702.00 kJ/mol  
6
10,542.50 kJ/mol  
4

5th Energy Level
8,702.00 kJ/mol  
9
13,630.00 kJ/mol  
3

6th Energy Level
8,700.00 kJ/mol  
27
18,020.00 kJ/mol  
3

7th Energy level
8,700.00 kJ/mol  
23
21,711.00 kJ/mol  
3

8th Energy Level
8,700.00 kJ/mol  
23
25,661.00 kJ/mol  
3

9th Energy Level
5,660.00 kJ/mol  
99+
31,653.00 kJ/mol  
3

10th Energy Level
8,700.00 kJ/mol  
24
35,458.00 kJ/mol  
5

11th Energy Level
8,700.00 kJ/mol  
21
169,988.00 kJ/mol  
1

12th Energy Level
8,700.00 kJ/mol  
99+
189,368.00 kJ/mol  
1

13th Energy Level
8,700.00 kJ/mol  
16
7,370.00 kJ/mol  
24

14th Energy Level
870.00 kJ/mol  
99+
737.70 kJ/mol  
99+

15th Energy Level
87,000.00 kJ/mol  
9
73,700.00 kJ/mol  
21

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

17th Energy Level
870.00 kJ/mol  
27
737.70 kJ/mol  
37

18th Energy Level
8,700.00 kJ/mol  
16
7,370.00 kJ/mol  
27

19th Energy Level
870.00 kJ/mol  
25
737.70 kJ/mol  
34

20th Energy Level
870.00 kJ/mol  
15
737.00 kJ/mol  
28

21st Energy Level
870.00 kJ/mol  
38
737.70 kJ/mol  
99+

22nd Energy Level
870.00 kJ/mol  
13
738.00 kJ/mol  
22

23rd Energy Level
870.10 kJ/mol  
39
737.70 kJ/mol  
99+

24th Energy Level
870.00 kJ/mol  
9
737.70 kJ/mol  
20

25th Energy Level
870.00 kJ/mol  
7
737.70 kJ/mol  
20

26th Energy Level
870.00 kJ/mol  
7
737.70 kJ/mol  
20

27th Energy Level
870.10 kJ/mol  
6
737.70 kJ/mol  
19

28th Energy Level
870.10 kJ/mol  
9
737.70 kJ/mol  
25

29th Energy Level
870.00 kJ/mol  
10
737.70 kJ/mol  
26

30th Energy Level
870.00 kJ/mol  
7
737.70 kJ/mol  
20

Electrochemical Equivalent
1.82 g/amp-hr  
39
0.45 g/amp-hr  
99+

Electron Work Function
5.65 eV  
4
3.66 eV  
40

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

Atomic

Atomic Number
78  
38
12  
99+

Electron Configuration
[Xe] 4f14 5d9 6s1  
[Ne] 3s2  

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

Crystal Lattice
FCC-Crystal-Structure-of-Platinum.jpg#100  
HCP-Crystal-Structure-of-Magnesium.jpg#100  

Atom
  
  

Number of Protons
78  
38
12  
99+

Number of Neutrons
117  
25
12  
99+

Number of Electrons
78  
38
12  
99+

Radius of an Atom
  
  

Atomic Radius
139.00 pm  
99+
160.00 pm  
29

Covalent Radius
136.00 pm  
99+
141.00 pm  
99+

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

Atomic Weight
47.87 amu  
99+
24.31 amu  
99+

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

Adjacent Atomic Numbers
  
  

Previous Element
Iridium
  
Sodium
  

Next Element
Gold
  
Aluminium
  

Valence Electron Potential
392.42 (-eV)  
1
40.00 (-eV)  
99+

Lattice Constant
392.42 pm  
27
320.94 pm  
99+

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

Lattice C/A Ratio
1.56  
99+
1.62  
15

Mechanical

Density
  
  

Density At Room Temperature
21.45 g/cm3  
11
1.74 g/cm3  
99+

Density When Liquid (at m.p.)
19.77 g/cm3  
12
1.58 g/cm3  
99+

Tensile Strength
125.00 MPa  
26
150.00 MPa  
25

Viscosity
0.00  
16
0.00  
24

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)  
16
0.00 (Pa)  
22

Vapor Pressure at 2000 K
0.07 (Pa)  
18
0.00 (Pa)  
30

Elasticity properties
  
  

Shear Modulus
61.00 GPa  
14
17.00 GPa  
99+

Bulk Modulus
230.00 GPa  
6
45.00 GPa  
29

Young's Modulus
168.00 GPa  
15
45.00 GPa  
99+

Poisson Ratio
0.38  
6
0.29  
15

Other Mechanical Properties
Ductile, Malleable  
-  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
21.45  
13
1.74  
99+

Magnetic Ordering
Paramagnetic  
Paramagnetic  

Permeability
0.00 H/m  
14
0.00 H/m  
8

Susceptibility
0.00  
20
0.00  
33

Electrical Properties
  
  

Electrical Property
Conductor  
Conductor  

Resistivity
105.00 nΩ·m  
30
43.90 nΩ·m  
99+

Electrical Conductivity
0.10 106/cm Ω  
26
0.23 106/cm Ω  
7

Electron Affinity
205.30 kJ/mol  
2
0.00 kJ/mol  
99+

Thermal

Specific Heat
0.13 J/(kg K)  
40
1.02 J/(kg K)  
4

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

Thermal Conductivity
71.60 W/m·K  
24
156.00 W/m·K  
8

Critical Temperature
2,041.00 K  
19
923.00 K  
99+

Thermal Expansion
8.80 µm/(m·K)  
99+
24.80 µm/(m·K)  
15

Enthalpy
  
  

Enthalpy of Vaporization
510.50 kJ/mol  
15
128.70 kJ/mol  
99+

Enthalpy of Fusion
19.70 kJ/mol  
12
8.95 kJ/mol  
99+

Enthalpy of Atomization
565.00 kJ/mol  
15
148.50 kJ/mol  
99+

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

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