1 Periodic Table
1.1 Symbol
1.2 Group Number
1.4 Period Number
2.3 Block
2.4 Element Family
Transition Metal
Transition Metal
2.5 CAS Number
74404397439965
7429905
54386242
2.7 Space Group Name
2.8 Space Group Number
3 Facts
3.1 Interesting Facts
- Naturally occurring minor elements include Cadmium.
- Cadmium is released into atmosphere to control volcanic eruption and forest fires.
- It is used for electroplating of Steel for corrosion resistance.
- It can absorb neutrons and used in nuclear reactor to control atomic fission.
- Manganese is an essential trace element in all forms of life.
- Manganese metal oxidizes very easily, but it does not fuse that easily.
3.2 Sources
Found As a By-product, Found in Minerals, Mining
Found in Minerals, Mining, Ores of Minerals
3.3 History
3.3.1 Who Discovered
Karl Samuel Leberecht Hermann and Friedrich Stromeyer
Johann Gottlieb Gahn
3.3.2 Discovery
3.4 Abundance
3.4.1 Abundance In Universe
2 * 10-7 %8 * 10-4 %
5E-09
0.11
3.4.3 Abundance In Sun
~0.0000006 %~0.001 %
1E-08
0.1
3.4.5 Abundance In Meteorites
3.5.2 Abundance In Earth's Crust
3.6.2 Abundance In Oceans
3.6.4 Abundance In Humans
4 Uses
4.1 Uses & Benefits
- It has very limited uses as it is a toxic metal and it can cause birth defects, cancer, etc.
-
Almost 80% of Cadmium metal is used in Nickel cadmium Batteries and now it is getting replaced with nickel hydride.
- 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.
4.1.1 Industrial Uses
Aerospace Industry, Ammunition Industry, Chemical Industry, Electrical Industry, Electronic Industry
Automobile Industry, Electrical Industry, Electronic Industry
4.1.2 Medical Uses
4.1.3 Other Uses
4.2 Biological Properties
4.2.1 Toxicity
4.2.2 Present in Human Body
4.2.3 In Blood
0.01 Blood/mg dm-30.08 Blood/mg dm-3
0
1970
4.2.5 In Bone
1.80 p.p.m.100.00 p.p.m.
0
170000
5 Physical
5.1 Melting Point
320.90 °C1,245.00 °C
27
3410
5.2 Boiling Point
765.00 °C1,962.00 °C
147
5660
5.3 Appearance
5.3.1 Physical State
5.3.2 Color
Silvery Bluish-Gray
Silver
5.3.3 Luster
5.4 Hardness
5.4.1 Mohs Hardness
5.4.4 Brinell Hardness
203.00 MPa196.00 MPa
0.14
3490
5.4.6 Vickers Hardness
5.5 Speed of Sound
2,310.00 m/s5,150.00 m/s
818
16200
5.6 Optical Properties
5.6.1 Refractive Index
5.6.2 Reflectivity
5.7 Allotropes
5.7.1 α Allotropes
Not Available
Not Available
5.7.2 β Allotropes
Not Available
Not Available
5.7.3 γ Allotropes
Not Available
Not Available
6 Chemical
6.1 Chemical Formula
6.2 Isotopes
6.2.1 Known Isotopes
6.3 Electronegativity
6.3.1 Pauling Electronegativity
6.3.3 Sanderson Electronegativity
6.3.5 Allred Rochow Electronegativity
6.3.7 Mulliken-Jaffe Electronegativity
6.3.10 Allen Electronegativity
6.4 Electropositivity
6.4.1 Pauling Electropositivity
6.5 Ionization Energies
6.5.1 1st Energy Level
867.80 kJ/mol717.30 kJ/mol
375.7
26130
6.5.3 2nd Energy Level
1,631.40 kJ/mol1,509.00 kJ/mol
710.2162
28750
6.5.5 3rd Energy Level
3,616.00 kJ/mol3,248.00 kJ/mol
1600
34230
6.5.8 4th Energy Level
NA4,940.00 kJ/mol
2780
37066
6.5.10 5th Energy Level
NA6,990.00 kJ/mol
4305.2
97510
6.6.1 6th Energy Level
NA9,220.00 kJ/mol
5715.8
105800
6.6.2 7th Energy level
NA11,500.00 kJ/mol
7226.8
114300
6.7.1 8th Energy Level
NA18,770.00 kJ/mol
8857.4
125300
7.1.1 9th Energy Level
NA21,400.00 kJ/mol
14110
134700
7.1.2 10th Energy Level
NA23,960.00 kJ/mol
17100
144300
7.4.2 11th Energy Level
NA27,590.00 kJ/mol
19900
169988
7.4.4 12th Energy Level
NA30,330.00 kJ/mol
22219
189368
7.4.6 13th Energy Level
NA33,150.00 kJ/mol
26930
76015
7.5.2 14th Energy Level
NA38,880.00 kJ/mol
29196
86450
7.5.4 15th Energy Level
NA41,987.00 kJ/mol
41987
97510
7.5.6 16th Energy Level
NA109,480.00 kJ/mol
47206
109480
7.6.1 17th Energy Level
NA118,100.00 kJ/mol
52737
122200
7.6.2 18th Energy Level
NA127,100.00 kJ/mol
58570
134810
7.7.1 19th Energy Level
NA138,600.00 kJ/mol
64702
148700
7.9.1 20th Energy Level
NA148,500.00 kJ/mol
80400
171200
7.9.2 21st Energy Level
NA158,600.00 kJ/mol
87000
179100
7.10.1 22nd Energy Level
NA172,500.00 kJ/mol
93400
184900
7.12.1 23rd Energy Level
NA181,380.00 kJ/mol
98420
198800
8.1.2 24th Energy Level
8.1.3 25th Energy Level
8.1.5 26th Energy Level
8.1.6 27th Energy Level
8.2.1 28th Energy Level
8.3.1 29th Energy Level
8.4.2 30th Energy Level
8.5 Electrochemical Equivalent
2.10 g/amp-hr0.29 g/amp-hr
0.16812
8.3209
8.7 Electron Work Function
8.8 Other Chemical Properties
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
Ionization, Radioactive Isotopes
9 Atomic
9.1 Atomic Number
9.2 Electron Configuration
[Kr] 4d10 5s2
[Ar] 3d5 4s2
9.3 Crystal Structure
Hexagonal Close Packed (HCP)
Body Centered Cubic (BCC)
9.3.1 Crystal Lattice
9.4 Atom
9.4.1 Number of Protons
9.5.1 Number of Neutrons
10.1.2 Number of Electrons
10.2 Radius of an Atom
10.2.1 Atomic Radius
151.00 pm127.00 pm
112
265
10.2.3 Covalent Radius
144.00 pm139.00 pm
96
260
10.3.3 Van der Waals Radius
158.00 pm200.00 pm
139
348
10.4 Atomic Weight
112.41 amu54.94 amu
6.94
294
10.5 Atomic Volume
13.10 cm3/mol1.39 cm3/mol
1.39
71.07
11.2 Adjacent Atomic Numbers
11.2.1 Previous Element
11.2.2 Next Element
11.3 Valence Electron Potential
30.00 (-eV)220.00 (-eV)
8
392.42
11.5 Lattice Constant
297.94 pm891.25 pm
228.58
891.25
11.6 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
11.8 Lattice C/A Ratio
12 Mechanical
12.1 Density
12.1.1 Density At Room Temperature
8.65 g/cm37.21 g/cm3
0.534
40.7
12.2.1 Density When Liquid (at m.p.)
8.00 g/cm35.95 g/cm3
0.512
20
12.4 Tensile Strength
12.6 Viscosity
12.7 Vapor Pressure
12.7.1 Vapor Pressure at 1000 K
12.7.3 Vapor Pressure at 2000 K
12.8 Elasticity properties
12.8.1 Shear Modulus
12.9.1 Bulk Modulus
42.00 GPa120.00 GPa
1.6
462
12.9.2 Young's Modulus
50.00 GPa198.00 GPa
1.7
528
12.10 Poisson Ratio
12.11 Other Mechanical Properties
13 Magnetic
13.1 Magnetic Characteristics
13.1.1 Specific Gravity
13.1.2 Magnetic Ordering
13.1.3 Permeability
13.1.4 Susceptibility
13.2 Electrical Properties
13.2.1 Electrical Property
13.2.2 Resistivity
72.70 nΩ·m1.44 nΩ·m
0.18
961
13.2.3 Electrical Conductivity
0.14 106/cm Ω0.01 106/cm Ω
0.00666
0.63
13.2.4 Electron Affinity
0.00 kJ/mol0.00 kJ/mol
0
222.8
14 Thermal
14.1 Specific Heat
0.23 J/(kg K)0.48 J/(kg K)
0.11
3.6
14.2 Molar Heat Capacity
26.02 J/mol·K26.32 J/mol·K
16.443
62.7
14.3 Thermal Conductivity
96.60 W/m·K7.81 W/m·K
6.3
429
14.4 Critical Temperature
14.5 Thermal Expansion
30.80 µm/(m·K)21.70 µm/(m·K)
4.5
97
14.6 Enthalpy
14.6.1 Enthalpy of Vaporization
100.00 kJ/mol219.70 kJ/mol
7.32
799.1
14.6.2 Enthalpy of Fusion
6.19 kJ/mol14.64 kJ/mol
2.1
35.23
14.6.3 Enthalpy of Atomization
113.00 kJ/mol280.30 kJ/mol
61.5
837
14.7 Standard Molar Entropy
51.80 J/mol.K32.00 J/mol.K
9.5
198.1