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Cadmium
Cadmium




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What is Cadmium?

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1 Periodic Table

1.1 Symbol

Cd

1.2 Group Number

12
Rank: 6 (Overall)
Gadolinium
0 17

1.3 Period Number

5
Rank: 3 (Overall)
Lithium
2 7

1.4 Block

d block

1.5 Element Family

Transition Metal

1.6 CAS Number

7440439
Rank: 42 (Overall)
Aluminium
7429905 54386242

1.7 Space Group Name

P63/mmc

1.8 Space Group Number

194.00
Rank: 5 (Overall)
Plutonium
11 229

2 Facts

2.1 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.

2.2 Sources

Found As a By-product, Found in Minerals, Mining

2.3 History

2.3.1 Who Discovered

Karl Samuel Leberecht Hermann and Friedrich Stromeyer

2.3.2 Discovery

In 1817

2.4 Abundance

2.4.1 Abundance In Universe

2 * 10-7 %
Rank: 22 (Overall)
Thallium
5E-09 0.11

2.4.2 Abundance In Sun

~0.0000006 %
Rank: 21 (Overall)
Beryllium
1E-08 0.1

2.4.3 Abundance In Meteorites

0.00 %
Rank: 31 (Overall)
Gold
1.7E-07 22

2.4.4 Abundance In Earth's Crust

0.00 %
Rank: 46 (Overall)
Radium
9.9E-12 8.1

2.4.5 Abundance In Oceans

0.00 %
Rank: 28 (Overall)
Protactinium
2E-23 1.1

2.4.6 Abundance In Humans

0.00 %
Rank: 11 (Overall)
Radium
1E-13 1.4

3 Uses

3.1 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.

3.1.1 Industrial Uses

Aerospace Industry, Ammunition Industry, Chemical Industry, Electrical Industry, Electronic Industry

3.1.2 Medical Uses

NA

3.1.3 Other Uses

Alloys

3.2 Biological Properties

3.2.1 Toxicity

Toxic

3.2.2 Present in Human Body

60% - Transition Metals Metals have it !

3.2.3 In Blood

0.01 Blood/mg dm-3
Rank: 24 (Overall)
Plutonium
0 1970

3.2.4 In Bone

1.80 p.p.m.
Rank: 15 (Overall)
Plutonium
0 170000

4 Physical

4.1 Melting Point

320.90 °C
Rank: 68 (Overall)
Francium
27 3410

4.2 Boiling Point

765.00 °C
Rank: 73 (Overall)
Flerovium
147 5660

4.3 Appearance

4.3.1 Physical State

Solid

4.3.2 Color

Silvery Bluish-Gray

4.3.3 Luster

Metallic

4.4 Hardness

4.4.1 Mohs Hardness

2.00
Rank: 16 (Overall)
Cesium
0.2 8.5

4.4.2 Brinell Hardness

203.00 MPa
Rank: 39 (Overall)
Cesium
0.14 3490

4.4.3 Vickers Hardness

Not Available
Rank: N/A (Overall)
Palladium
121 3430

4.5 Speed of Sound

2,310.00 m/s
Rank: 39 (Overall)
Thallium
818 16200

4.6 Optical Properties

4.6.1 Refractive Index

Not Available
Rank: N/A (Overall)
Mercury
1.000933 1.7229

4.6.2 Reflectivity

67.00 %
Rank: 11 (Overall)
Molybdenum
58 97

4.7 Allotropes

6% - Transition Metals Metals have it !

4.7.1 α Allotropes

Not Available

4.7.2 β Allotropes

Not Available

4.7.3 γ Allotropes

Not Available

5 Chemical

5.1 Chemical Formula

Cd

5.2 Isotopes

5.2.1 Known Isotopes

34
Rank: 5 (Overall)
Tennessine
0 38

5.3 Electronegativity

5.3.1 Pauling Electronegativity

1.69
Rank: 17 (Overall)
Francium
0.7 2.54

5.3.2 Sanderson Electronegativity

1.98
Rank: 9 (Overall)
Cesium
0.22 2.56

5.3.3 Allred Rochow Electronegativity

1.46
Rank: 15 (Overall)
Cesium
0.86 1.82

5.3.4 Mulliken-Jaffe Electronegativity

1.53
Rank: 13 (Overall)
Cesium
0.62 2.48

5.3.5 Allen Electronegativity

1.52
Rank: 27 (Overall)
Cesium
0.659 2.7

5.4 Electropositivity

5.4.1 Pauling Electropositivity

2.31
Rank: 37 (Overall)
Gold
1.46 3.3

5.5 Ionization Energies

5.5.1 1st Energy Level

867.80 kJ/mol
Rank: 11 (Overall)
Cesium
375.7 26130

5.5.2 2nd Energy Level

1,631.40 kJ/mol
Rank: 32 (Overall)
Ruthenium
710.2162 28750

5.5.3 3rd Energy Level

3,616.00 kJ/mol
Rank: 13 (Overall)
Osmium
1600 34230

5.5.4 4th Energy Level

Not Available
Rank: N/A (Overall)
Thorium
2780 37066

5.5.5 5th Energy Level

Not Available
Rank: N/A (Overall)
Dubnium
4305.2 97510

5.5.6 6th Energy Level

Not Available
Rank: N/A (Overall)
Seaborgium
5715.8 105800

5.5.7 7th Energy level

Not Available
Rank: N/A (Overall)
Bohrium
7226.8 114300

5.5.8 8th Energy Level

Not Available
Rank: N/A (Overall)
Hassium
8857.4 125300

5.5.9 9th Energy Level

Not Available
Rank: N/A (Overall)
Yttrium
14110 134700

5.5.10 10th Energy Level

Not Available
Rank: N/A (Overall)
Strontium
17100 144300

5.5.11 11th Energy Level

Not Available
Rank: N/A (Overall)
Yttrium
19900 169988

5.5.12 12th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum
22219 189368

5.5.13 13th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum
26930 76015

5.5.14 14th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum
29196 86450

5.5.15 15th Energy Level

Not Available
Rank: N/A (Overall)
Manganese
41987 97510

5.5.16 16th Energy Level

Not Available
Rank: N/A (Overall)
Iron
47206 109480

5.5.17 17th Energy Level

Not Available
Rank: N/A (Overall)
Cobalt
52737 122200

5.5.18 18th Energy Level

Not Available
Rank: N/A (Overall)
Nickel
58570 134810

5.5.19 19th Energy Level

Not Available
Rank: N/A (Overall)
Copper
64702 148700

5.5.20 20th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum
80400 171200

5.5.21 21st Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum
87000 179100

5.5.22 22nd Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum
93400 184900

5.5.23 23rd Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum
98420 198800

5.5.24 24th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum
104400 195200

5.5.25 25th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum
121900 121900

5.5.26 26th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum
127700 127700

5.5.27 27th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum
133800 133800

5.5.28 28th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum
139800 139800

5.5.29 29th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum
148100 148100

5.5.30 30th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum
154500 154500

5.6 Electrochemical Equivalent

2.10 g/amp-hr
Rank: 27 (Overall)
Beryllium
0.16812 8.3209

5.7 Electron Work Function

4.22 eV
Rank: 22 (Overall)
Cesium
2.14 5.65

5.8 Other Chemical Properties

Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility

6 Atomic

6.1 Atomic Number

48
Rank: 64 (Overall)
Lithium
3 117

6.2 Electron Configuration

[Kr] 4d10 5s2

6.3 Crystal Structure

Hexagonal Close Packed (HCP)

6.3.1 Crystal Lattice

6.4 Atom

6.4.1 Number of Protons

48
Rank: 63 (Overall)
Lithium
3 117

6.4.2 Number of Neutrons

64
Rank: 46 (Overall)
Lithium
4 184

6.4.3 Number of Electrons

48
Rank: 63 (Overall)
Lithium
3 117

6.5 Radius of an Atom

6.5.1 Atomic Radius

151.00 pm
Rank: 32 (Overall)
Beryllium
112 265

6.5.2 Covalent Radius

144.00 pm
Rank: 40 (Overall)
Beryllium
96 260

6.5.3 Van der Waals Radius

158.00 pm
Rank: 41 (Overall)
Zinc
139 348

6.6 Atomic Weight

112.41 amu
Rank: 58 (Overall)
Lithium
6.94 294

6.7 Atomic Volume

13.10 cm3/mol
Rank: 39 (Overall)
Manganese
1.39 71.07

6.8 Adjacent Atomic Numbers

6.8.1 Previous Element

6.8.2 Next Element

6.9 Valence Electron Potential

30.00 (-eV)
Rank: 52 (Overall)
Francium
8 392.42

6.10 Lattice Constant

297.94 pm
Rank: 60 (Overall)
Beryllium
228.58 891.25

6.11 Lattice Angles

π/2, π/2, 2 π/3

6.12 Lattice C/A Ratio

1.89
Rank: 1 (Overall)
Beryllium
1.567 1.886

7 Mechanical

7.1 Density

7.1.1 Density At Room Temperature

8.65 g/cm3
Rank: 47 (Overall)
Lithium
0.534 40.7

7.1.2 Density When Liquid (at m.p.)

8.00 g/cm3
Rank: 28 (Overall)
Lithium
0.512 20

7.2 Tensile Strength

62.00 MPa
Rank: 16 (Overall)
Indium
2.5 11000

7.3 Viscosity

Not Available
Rank: N/A (Overall)
Mercury
0.001526 0.001526

7.4 Vapor Pressure

7.4.1 Vapor Pressure at 1000 K

Not Available
Rank: N/A (Overall)
Cerium
2.47E-11 121

7.4.2 Vapor Pressure at 2000 K

Not Available
Rank: N/A (Overall)
Tungsten
2.62E-10 774

7.5 Elasticity properties

7.5.1 Shear Modulus

19.00 GPa
Rank: 35 (Overall)
Potassium
1.3 222

7.5.2 Bulk Modulus

42.00 GPa
Rank: 29 (Overall)
Cesium
1.6 462

7.5.3 Young's Modulus

50.00 GPa
Rank: 36 (Overall)
Cesium
1.7 528

7.6 Poisson Ratio

0.30
Rank: 14 (Overall)
Beryllium
0.032 0.47

7.7 Other Mechanical Properties

Ductile, Malleable

8 Magnetic

8.1 Magnetic Characteristics

8.1.1 Specific Gravity

8.65
Rank: 36 (Overall)
Lithium
0.53 4500

8.1.2 Magnetic Ordering

Diamagnetic

8.1.3 Permeability

Not Available
Rank: N/A (Overall)
Bismuth
1.25643E-06 0.0063

8.1.4 Susceptibility

Not Available
Rank: N/A (Overall)
Bismuth
-0.000166 200000

8.2 Electrical Properties

8.2.1 Electrical Property

Semiconductor

8.2.2 Resistivity

72.70 nΩ·m
Rank: 36 (Overall)
Thallium
0.18 961

8.2.3 Electrical Conductivity

0.14 106/cm Ω
Rank: 15 (Overall)
Plutonium
0.00666 0.63

8.2.4 Electron Affinity

0.00 kJ/mol
Rank: 40 (Overall)
Mercury
0 222.8

9 Thermal

9.1 Specific Heat

0.23 J/(kg K)
Rank: 26 (Overall)
Americium
0.11 3.6

9.2 Molar Heat Capacity

26.02 J/mol·K
Rank: 32 (Overall)
Beryllium
16.443 62.7

9.3 Thermal Conductivity

96.60 W/m·K
Rank: 16 (Overall)
Neptunium
6.3 429

9.4 Critical Temperature

Not Available
Rank: N/A (Overall)
Ytterbium
26.3 3223

9.5 Thermal Expansion

30.80 µm/(m·K)
Rank: 10 (Overall)
Tungsten
4.5 97

9.6 Enthalpy

9.6.1 Enthalpy of Vaporization

100.00 kJ/mol
Rank: 53 (Overall)
Zinc
7.32 799.1

9.6.2 Enthalpy of Fusion

6.19 kJ/mol
Rank: 50 (Overall)
Cesium
2.1 35.23

9.6.3 Enthalpy of Atomization

113.00 kJ/mol
Rank: 56 (Overall)
Mercury
61.5 837

9.7 Standard Molar Entropy

51.80 J/mol.K
Rank: 27 (Overall)
Beryllium
9.5 198.1