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Magnesium vs Platinum

Magnesium
Platinum
Platinum vs Magnesium


Periodic Table
Symbol
Mg   
Pt   
Group Number
2   
16
10   
8
Period Number
3   
6   
Block
s block   
d block   
Element Family
Alkaline Earth   
Transition Metal   
CAS Number
7439954   
99+
7440064   
99+
Space Group Name
P63/mmc   
Fm_ 3m   
Space Group Number
194.00   
5
225.00   
2
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.
  
  • Platinum is the rarest metal from the Precious metal categories..
  • Commercially Platinum is produced as a byproduct in ores of nickel.
  
Sources
By Electrolysis Process, In Ocean, Mining   
Mining, Ores of metals, Ores of Minerals   
History
  
  
Who Discovered
Joseph Black   
Antonio de Ulloa   
Discovery
In 1755   
In 1735   
Abundance
  
  
Abundance In Universe
6 * 10-2 %   
2
5 * 10-7 %   
19
Abundance In Sun
~0.07 %   
2
~0.0000009 %   
19
Abundance In Meteorites
12.00 %   
2
0.00 %   
25
Abundance In Earth's Crust
2.90 %   
4
0.00 %   
99+
Abundance In Oceans
0.13 %   
2
Not Available   
Abundance In Humans
0.03 %   
4
Not Available   
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.
  
  • Platinum metal is mainly used in jewellery.
  • Platinum is used as an industrial catalyst in production of nitric acid, silicone and benzene.
  
Industrial Uses
Aerospace Industry, Ammunition Industry, Automobile Industry, Chemical Industry, Pharmaceutical Industry   
Aerospace Industry, Chemical Industry   
Medical Uses
NA   
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing   
Other Uses
Surgical Instruments Manufacturing   
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues   
Biological Properties
  
  
Toxicity
Non Toxic   
Non Toxic   
Present in Human Body
Yes   
No   
In Blood
37.80 Blood/mg dm-3   
5
Not Available   
In Bone
1,800.00 p.p.m.   
4
Not Available   
Physical Properties
Melting Point
650.00 °C   
99+
1,772.00 °C   
16
Boiling Point
1,107.00 °C   
99+
3,827.00 °C   
15
Appearance
  
  
Physical State
Solid   
Solid   
Color
Gray   
Silvery White   
Luster
NA   
Metallic   
Hardness
  
  
Mohs Hardness
2.50   
14
3.50   
11
Brinell Hardness
260.00 MPa   
36
300.00 MPa   
34
Vickers Hardness
Not Available   
400.00 MPa   
25
Speed of Sound
4,940.00 m/s   
11
2,800.00 m/s   
29
Optical Properties
  
  
Reflectivity
74.00 %   
7
73.00 %   
8
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
Mg   
Pt   
Isotopes
  
  
Known Isotopes
15   
24
35   
4
Electronegativity
  
  
Pauling Electronegativity
1.31   
31
2.28   
3
Sanderson Electronegativity
1.32   
18
Not Available   
Allred Rochow Electronegativity
1.23   
25
1.44   
17
Mulliken-Jaffe Electronegativity
1.37   
16
Not Available   
Allen Electronegativity
1.29   
35
1.72   
16
Electropositivity
  
  
Pauling Electropositivity
2.69   
23
1.72   
99+
Ionization Energies
  
  
1st Energy Level
737.70 kJ/mol   
24
870.00 kJ/mol   
10
2nd Energy Level
1,450.70 kJ/mol   
99+
1,791.00 kJ/mol   
21
3rd Energy Level
7,732.70 kJ/mol   
5
Not Available   
4th Energy Level
10,542.50 kJ/mol   
4
Not Available   
5th Energy Level
13,630.00 kJ/mol   
3
Not Available   
6th Energy Level
18,020.00 kJ/mol   
3
Not Available   
7th Energy level
21,711.00 kJ/mol   
3
Not Available   
8th Energy Level
25,661.00 kJ/mol   
3
Not Available   
9th Energy Level
31,653.00 kJ/mol   
3
Not Available   
10th Energy Level
35,458.00 kJ/mol   
5
Not Available   
11th Energy Level
169,988.00 kJ/mol   
1
Not Available   
12th Energy Level
189,368.00 kJ/mol   
1
Not Available   
Electrochemical Equivalent
0.45 g/amp-hr   
99+
1.82 g/amp-hr   
35
Electron Work Function
3.66 eV   
29
5.65 eV   
1
Other Chemical Properties
Corrosion, Highly Inflammable, Ionization, Solubility   
Chemical Stability, Anti Corrosion, Ionization   
Atomic Properties
Atomic Number
12   
99+
78   
38
Electron Configuration
[Ne] 3s2   
[Xe] 4f14 5d9 6s1   
Crystal Structure
Hexagonal Close Packed (HCP)   
Face Centered Cubic (FCC)   
Crystal Lattice
HCP-Crystal-Structure-of-Magnesium.jpg#100   
FCC-Crystal-Structure-of-Platinum.jpg#100   
Atom
  
  
Number of Protons
12   
99+
78   
38
Number of Neutrons
12   
99+
117   
24
Number of Electrons
12   
99+
78   
38
Radius of an Atom
  
  
Atomic Radius
160.00 pm   
27
139.00 pm   
39
Covalent Radius
141.00 pm   
99+
136.00 pm   
99+
Van der Waals Radius
173.00 pm   
37
175.00 pm   
36
Atomic Weight
24.31 amu   
99+
47.87 amu   
99+
Atomic Volume
13.97 cm3/mol   
37
9.09 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Sodium
  
Iridium
  
Next Element
Aluminium
  
Gold
  
Valence Electron Potential
40.00 (-eV)   
99+
392.42 (-eV)   
1
Lattice Constant
320.94 pm   
99+
392.42 pm   
24
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
1.74 g/cm3   
99+
21.45 g/cm3   
11
Density When Liquid (at m.p.)
1.58 g/cm3   
99+
19.77 g/cm3   
2
Tensile Strength
Not Available   
125.00 MPa   
14
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 2000 K
Not Available   
0.07 (Pa)   
18
Elasticity properties
  
  
Shear Modulus
17.00 GPa   
37
61.00 GPa   
14
Bulk Modulus
45.00 GPa   
25
230.00 GPa   
6
Young's Modulus
45.00 GPa   
39
168.00 GPa   
14
Poisson Ratio
0.29   
15
0.38   
6
Other Mechanical Properties
NA   
Ductile, Malleable   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
1.74   
99+
21.45   
4
Magnetic Ordering
Paramagnetic   
Paramagnetic   
Permeability
Not Available   
0.00 H/m   
3
Electrical Properties
  
  
Electrical Property
Conductor   
Conductor   
Resistivity
43.90 nΩ·m   
99+
105.00 nΩ·m   
30
Electrical Conductivity
0.23 106/cm Ω   
7
0.10 106/cm Ω   
21
Electron Affinity
0.00 kJ/mol   
40
205.30 kJ/mol   
2
Thermal Properties
Specific Heat
1.02 J/(kg K)   
4
0.13 J/(kg K)   
39
Molar Heat Capacity
24.87 J/mol·K   
99+
25.86 J/mol·K   
35
Thermal Conductivity
156.00 W/m·K   
8
71.60 W/m·K   
24
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
24.80 µm/(m·K)   
15
8.80 µm/(m·K)   
99+
Enthalpy
  
  
Enthalpy of Vaporization
128.70 kJ/mol   
99+
510.50 kJ/mol   
11
Enthalpy of Fusion
8.95 kJ/mol   
39
19.70 kJ/mol   
12
Enthalpy of Atomization
148.50 kJ/mol   
99+
565.00 kJ/mol   
11
Standard Molar Entropy
32.70 J/mol.K   
99+
41.60 J/mol.K   
36
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