1 Periodic Table
1.1 Symbol
1.2 Group Number
1.3 Period Number
1.4 Block
1.5 Element Family
Alkaline Earth
Transition Metal
1.6 CAS Number
74399547440473
7429905
54386242
1.7 Space Group Name
1.8 Space Group Number
2 Facts
2.1 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.
- Chromium is highly reactive, hence it is not found free in nature.
- Ores of Chromites mineral are the major source of Chromium metal.
- Almost 90% leather tanning is done with the help of chromium.
2.2 Sources
By Electrolysis Process, In Ocean, Mining
Found in Minerals, Mining, Ores of metals, Ores of Minerals
2.3 History
2.3.1 Who Discovered
Joseph Black
Louis Nicolas Vauquelin
2.3.2 Discovery
In 1755
In Between 1797 - 1798
2.4 Abundance
2.4.1 Abundance In Universe
6 * 10-2 %1.5 * 10-3 %
5E-09
0.11
2.4.2 Abundance In Sun
~0.07 %~0.002 %
1E-08
0.1
2.4.3 Abundance In Meteorites
2.4.4 Abundance In Earth's Crust
2.4.5 Abundance In Oceans
2.4.6 Abundance In Humans
3 Uses
3.1 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 used to harden the steel and produces a stainless steel and other various alloys.
- It is also used to give proper finish to polished mirrors. Its chromium plates are used in bathroom fittings.
3.1.1 Industrial Uses
Aerospace Industry, Ammunition Industry, Automobile Industry, Chemical Industry, Pharmaceutical Industry
Automobile Industry, Chemical Industry
3.1.2 Medical Uses
3.1.3 Other Uses
Surgical Instruments Manufacturing
Alloys
3.2 Biological Properties
3.2.1 Toxicity
3.2.2 Present in Human Body
3.2.3 In Blood
37.80 Blood/mg dm-30.11 Blood/mg dm-3
0
1970
3.2.4 In Bone
1,800.00 p.p.m.0.33 p.p.m.
0
170000
2 Physical
2.1 Melting Point
650.00 °C1,857.00 °C
27
3410
2.3 Boiling Point
1,107.00 °C2,672.00 °C
147
5660
2.7 Appearance
2.7.1 Physical State
2.7.2 Color
2.7.3 Luster
2.8 Hardness
2.8.1 Mohs Hardness
2.8.2 Brinell Hardness
260.00 MPa687.00 MPa
0.14
3490
2.10.1 Vickers Hardness
3.5 Speed of Sound
4,940.00 m/s5,940.00 m/s
818
16200
3.6 Optical Properties
3.6.1 Refractive Index
3.6.2 Reflectivity
3.7 Allotropes
3.7.1 α Allotropes
Not Available
Not Available
3.7.2 β Allotropes
Not Available
Not Available
3.7.3 γ Allotropes
Not Available
Not Available
4 Chemical
4.1 Chemical Formula
4.2 Isotopes
4.2.1 Known Isotopes
4.3 Electronegativity
4.3.1 Pauling Electronegativity
4.3.3 Sanderson Electronegativity
4.3.5 Allred Rochow Electronegativity
5.2.4 Mulliken-Jaffe Electronegativity
5.2.6 Allen Electronegativity
6.2 Electropositivity
6.2.1 Pauling Electropositivity
6.4 Ionization Energies
6.4.1 1st Energy Level
737.70 kJ/mol26,130.00 kJ/mol
375.7
26130
6.4.2 2nd Energy Level
1,450.70 kJ/mol28,750.00 kJ/mol
710.2162
28750
6.6.2 3rd Energy Level
7,732.70 kJ/mol34,230.00 kJ/mol
1600
34230
6.6.3 4th Energy Level
10,542.50 kJ/mol37,066.00 kJ/mol
2780
37066
6.6.5 5th Energy Level
13,630.00 kJ/mol97,510.00 kJ/mol
4305.2
97510
6.6.6 6th Energy Level
18,020.00 kJ/mol105,800.00 kJ/mol
5715.8
105800
6.6.8 7th Energy level
21,711.00 kJ/mol114,300.00 kJ/mol
7226.8
114300
6.6.9 8th Energy Level
25,661.00 kJ/mol125,300.00 kJ/mol
8857.4
125300
6.7.1 9th Energy Level
31,653.00 kJ/mol134,700.00 kJ/mol
14110
134700
6.7.2 10th Energy Level
35,458.00 kJ/mol144,300.00 kJ/mol
17100
144300
6.8.2 11th Energy Level
169,988.00 kJ/mol26,130.00 kJ/mol
19900
169988
6.8.4 12th Energy Level
189,368.00 kJ/mol28,750.00 kJ/mol
22219
189368
7.2.2 13th Energy Level
NA34,230.00 kJ/mol
26930
76015
7.3.2 14th Energy Level
NA37,066.00 kJ/mol
29196
86450
7.3.4 15th Energy Level
NA97,510.00 kJ/mol
41987
97510
7.3.5 16th Energy Level
NA105,800.00 kJ/mol
47206
109480
7.3.7 17th Energy Level
NA114,300.00 kJ/mol
52737
122200
7.3.9 18th Energy Level
NA125,300.00 kJ/mol
58570
134810
7.3.10 19th Energy Level
NA134,700.00 kJ/mol
64702
148700
7.3.12 20th Energy Level
NA144,300.00 kJ/mol
80400
171200
7.3.13 21st Energy Level
NA157,700.00 kJ/mol
87000
179100
7.4.2 22nd Energy Level
NA166,090.00 kJ/mol
93400
184900
7.5.2 23rd Energy Level
7.5.4 24th Energy Level
7.5.6 25th Energy Level
7.5.7 26th Energy Level
7.5.9 27th Energy Level
7.5.10 28th Energy Level
7.5.12 29th Energy Level
7.5.14 30th Energy Level
7.6 Electrochemical Equivalent
0.45 g/amp-hr0.32 g/amp-hr
0.16812
8.3209
7.7 Electron Work Function
7.8 Other Chemical Properties
Corrosion, Highly Inflammable, Ionization, Solubility
Anti Corrosion, Chemical Stability, Ionization, Radioactive Isotopes, Solubility
8 Atomic
8.1 Atomic Number
8.2 Electron Configuration
8.3 Crystal Structure
Hexagonal Close Packed (HCP)
Body Centered Cubic (BCC)
8.3.1 Crystal Lattice
8.4 Atom
8.4.1 Number of Protons
8.4.3 Number of Neutrons
8.4.5 Number of Electrons
8.5 Radius of an Atom
8.5.1 Atomic Radius
160.00 pm128.00 pm
112
265
8.5.3 Covalent Radius
141.00 pm139.00 pm
96
260
8.5.5 Van der Waals Radius
173.00 pm200.00 pm
139
348
8.6 Atomic Weight
24.31 amu52.00 amu
6.94
294
8.7 Atomic Volume
13.97 cm3/mol7.23 cm3/mol
1.39
71.07
8.8 Adjacent Atomic Numbers
8.8.1 Previous Element
8.8.2 Next Element
8.9 Valence Electron Potential
40.00 (-eV)170.00 (-eV)
8
392.42
8.10 Lattice Constant
320.94 pm291.00 pm
228.58
891.25
8.11 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
8.12 Lattice C/A Ratio
9 Mechanical
9.1 Density
9.1.1 Density At Room Temperature
1.74 g/cm37.19 g/cm3
0.534
40.7
9.1.3 Density When Liquid (at m.p.)
1.58 g/cm36.30 g/cm3
0.512
20
9.2 Tensile Strength
9.3 Viscosity
9.4 Vapor Pressure
9.4.1 Vapor Pressure at 1000 K
9.4.5 Vapor Pressure at 2000 K
NA774.00 (Pa)
2.62E-10
774
9.6 Elasticity properties
9.6.1 Shear Modulus
17.00 GPa115.00 GPa
1.3
222
10.1.1 Bulk Modulus
45.00 GPa160.00 GPa
1.6
462
10.4.2 Young's Modulus
45.00 GPa279.00 GPa
1.7
528
10.5 Poisson Ratio
10.6 Other Mechanical Properties
11 Magnetic
11.1 Magnetic Characteristics
11.1.1 Specific Gravity
11.2.2 Magnetic Ordering
Paramagnetic
Antiferromagnetic
11.2.3 Permeability
11.2.4 Susceptibility
11.3 Electrical Properties
11.3.1 Electrical Property
11.3.2 Resistivity
43.90 nΩ·m125.00 nΩ·m
0.18
961
11.3.4 Electrical Conductivity
0.23 106/cm Ω0.08 106/cm Ω
0.00666
0.63
11.3.5 Electron Affinity
0.00 kJ/mol64.30 kJ/mol
0
222.8
12 Thermal
12.1 Specific Heat
1.02 J/(kg K)0.45 J/(kg K)
0.11
3.6
12.2 Molar Heat Capacity
24.87 J/mol·K23.35 J/mol·K
16.443
62.7
12.4 Thermal Conductivity
156.00 W/m·K93.90 W/m·K
6.3
429
12.7 Critical Temperature
12.11 Thermal Expansion
24.80 µm/(m·K)4.90 µm/(m·K)
4.5
97
13.2 Enthalpy
13.2.1 Enthalpy of Vaporization
128.70 kJ/mol348.80 kJ/mol
7.32
799.1
13.2.3 Enthalpy of Fusion
8.95 kJ/mol15.31 kJ/mol
2.1
35.23
13.5.2 Enthalpy of Atomization
148.50 kJ/mol397.50 kJ/mol
61.5
837
13.6 Standard Molar Entropy
32.70 J/mol.K23.80 J/mol.K
9.5
198.1