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Indium vs Cadmium


Cadmium vs Indium


Periodic Table

Symbol
In  
Cd  

Group Number
13  
5
12  
6

Period Number
5  
5  

Block
p block  
d block  

Element Family
Post-​Transition  
Transition Metal  

CAS Number
7440746  
17
7440439  
99+

Space Group Name
I4/mmm  
P63/mmc  

Space Group Number
139.00  
11
194.00  
7

Facts

Interesting Facts
  • Luster of Indium is bright in nature.
  • Reich and richer were looking for thallium in zinc metal and they discovered Indium metal.
  
  • 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.
  

Sources
Mining, Ores of metals  
Found As a By-product, Found in Minerals, Mining  

History
  
  

Who Discovered
Ferdinand Reich and Hieronymous Theodor Richter  
Karl Samuel Leberecht Hermann and Friedrich Stromeyer  

Discovery
In 1863  
In 1817  

Abundance
  
  

Abundance In Universe
0.00 %  
29
0.00 %  
23

Abundance In Sun
0.00 %  
23
0.00 %  
21

Abundance In Meteorites
0.00 %  
99+
0.00 %  
31

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

Abundance In Oceans
0.00 %  
99+
0.00 %  
28

Abundance In Humans
0.00 %  
16
0.00 %  
12

Uses

Uses & Benefits
  • It is used to produce indium tin oxide (ITO), it is used in manufacturing touch screens, flat screen TVs and solar panels.
  • Its nitride, phosphide and antimonide are used in transistors and microchips.
  
  • 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.
  

Industrial Uses
Aerospace Industry, Automobile Industry  
Aerospace Industry, Ammunition Industry, Chemical Industry, Electrical Industry, Electronic Industry  

Medical Uses
Medical Research  
-  

Other Uses
Alloys, In Nuclear Reactors  
Alloys  

Biological Properties
  
  

Toxicity
Non Toxic  
Toxic  

Present in Human Body
Yes  
Yes  

In Blood
0.00 Blood/mg dm-3  
40
0.01 Blood/mg dm-3  
24

In Bone
0.00 p.p.m.  
99+
1.80 p.p.m.  
16

Physical

Melting Point
156.61 °C  
99+
320.90 °C  
99+

Boiling Point
2,000.00 °C  
99+
765.00 °C  
99+

Appearance
  
  

Physical State
Solid  
Solid  

Color
Silvery Gray  
Silvery Bluish-Gray  

Luster
Lustrous  
Metallic  

Hardness
  
  

Mohs Hardness
1.20  
21
2.00  
17

Brinell Hardness
8.80 MPa  
99+
203.00 MPa  
99+

Vickers Hardness
0.01 MPa  
99+
90.00 MPa  
99+

Speed of Sound
1,215.00 m/s  
99+
2,310.00 m/s  
99+

Optical Properties
  
  

Refractive Index
3.41  
1
1.71  
26

Reflectivity
83.00 %  
6
67.00 %  
16

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
In  
Cd  

Isotopes
  
  

Known Isotopes
35  
4
34  
5

Electronegativity
  
  

Pauling Electronegativity
1.78  
17
1.69  
18

Sanderson Electronegativity
2.14  
9
1.98  
11

Allred Rochow Electronegativity
1.49  
14
1.46  
16

Mulliken-Jaffe Electronegativity
1.76  
18
1.53  
25

Allen Electronegativity
1.66  
21
1.52  
30

Electropositivity
  
  

Pauling Electropositivity
2.22  
38
2.31  
37

Ionization Energies
  
  

1st Energy Level
558.30 kJ/mol  
99+
867.80 kJ/mol  
11

2nd Energy Level
1,820.70 kJ/mol  
19
1,631.40 kJ/mol  
33

3rd Energy Level
2,704.00 kJ/mol  
40
3,616.00 kJ/mol  
13

4th Energy Level
5,210.00 kJ/mol  
26
867.80 kJ/mol  
99+

5th Energy Level
5,580.00 kJ/mol  
99+
4,040.00 kJ/mol  
99+

6th Energy Level
5,580.00 kJ/mol  
99+
8,640.00 kJ/mol  
28

7th Energy level
5,580.00 kJ/mol  
99+
8,640.00 kJ/mol  
24

8th Energy Level
5,580.00 kJ/mol  
99+
8,640.00 kJ/mol  
24

9th Energy Level
5,580.00 kJ/mol  
99+
8,670.00 kJ/mol  
22

10th Energy Level
5,580.00 kJ/mol  
99+
8,650.00 kJ/mol  
25

11th Energy Level
5,580.00 kJ/mol  
99+
8,670.00 kJ/mol  
22

12th Energy Level
5,580.00 kJ/mol  
99+
86,400.00 kJ/mol  
3

13th Energy Level
5,580.00 kJ/mol  
99+
8,640.00 kJ/mol  
17

14th Energy Level
558.30 kJ/mol  
99+
8,650.00 kJ/mol  
15

15th Energy Level
55,800.00 kJ/mol  
99+
86,400.00 kJ/mol  
10

16th Energy Level
558.30 kJ/mol  
99+
86,400.00 kJ/mol  
10

17th Energy Level
558.30 kJ/mol  
99+
864.90 kJ/mol  
28

18th Energy Level
5,580.00 kJ/mol  
99+
8,670.00 kJ/mol  
17

19th Energy Level
558.30 kJ/mol  
99+
867.80 kJ/mol  
26

20th Energy Level
558.00 kJ/mol  
99+
865.00 kJ/mol  
16

21st Energy Level
558.30 kJ/mol  
99+
8,670.00 kJ/mol  
10

22nd Energy Level
558.00 kJ/mol  
99+
864.00 kJ/mol  
14

23rd Energy Level
5,581.00 kJ/mol  
24
864.90 kJ/mol  
40

24th Energy Level
558.30 kJ/mol  
99+
864.90 kJ/mol  
10

25th Energy Level
558.00 kJ/mol  
99+
864.00 kJ/mol  
8

26th Energy Level
558.30 kJ/mol  
99+
864.90 kJ/mol  
8

27th Energy Level
558.30 kJ/mol  
99+
864.90 kJ/mol  
8

28th Energy Level
558.30 kJ/mol  
99+
864.90 kJ/mol  
11

29th Energy Level
558.30 kJ/mol  
99+
864.90 kJ/mol  
12

30th Energy Level
558.00 kJ/mol  
99+
864.00 kJ/mol  
8

Electrochemical Equivalent
1.43 g/amp-hr  
99+
2.10 g/amp-hr  
31

Electron Work Function
4.12 eV  
31
4.22 eV  
29

Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility  
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility  

Atomic

Atomic Number
49  
99+
48  
99+

Electron Configuration
[Kr] 4d10 5s2 5p1  
[Kr] 4d10 5s2  

Crystal Structure
Tetragonal (TETR)  
Hexagonal Close Packed (HCP)  

Crystal Lattice
TETR-Crystal-Structure-of-Indium.jpg#100  
HCP-Crystal-Structure-of-Cadmium.jpg#100  

Atom
  
  

Number of Protons
49  
99+
48  
99+

Number of Neutrons
66  
99+
64  
99+

Number of Electrons
49  
99+
48  
99+

Radius of an Atom
  
  

Atomic Radius
167.00 pm  
26
151.00 pm  
34

Covalent Radius
142.00 pm  
99+
144.00 pm  
99+

Van der Waals Radius
193.00 pm  
38
158.00 pm  
99+

Atomic Weight
114.82 amu  
99+
112.41 amu  
99+

Atomic Volume
15.70 cm3/mol  
99+
13.10 cm3/mol  
99+

Adjacent Atomic Numbers
  
  

Previous Element
Cadmium
  
Silver
  

Next Element
Tin
  
Indium
  

Valence Electron Potential
54.00 (-eV)  
26
30.00 (-eV)  
99+

Lattice Constant
325.23 pm  
99+
297.94 pm  
99+

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

Lattice C/A Ratio
1.56  
99+
1.89  
2

Mechanical

Density
  
  

Density At Room Temperature
7.31 g/cm3  
99+
8.65 g/cm3  
99+

Density When Liquid (at m.p.)
7.02 g/cm3  
99+
8.00 g/cm3  
99+

Tensile Strength
2.50 MPa  
99+
62.00 MPa  
34

Viscosity
0.00  
25
0.00  
13

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.01 (Pa)  
11
0.00 (Pa)  
22

Vapor Pressure at 2000 K
0.00 (Pa)  
24
0.00 (Pa)  
24

Elasticity properties
  
  

Shear Modulus
18.00 GPa  
99+
19.00 GPa  
99+

Bulk Modulus
46.90 GPa  
27
42.00 GPa  
34

Young's Modulus
11.00 GPa  
99+
50.00 GPa  
39

Poisson Ratio
0.44  
3
0.30  
14

Other Mechanical Properties
Ductile, Malleable  
Ductile, Malleable  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
7.31  
99+
8.65  
99+

Magnetic Ordering
Diamagnetic  
Diamagnetic  

Permeability
0.00 H/m  
17
0.00 H/m  
10

Susceptibility
0.00  
34
0.00  
24

Electrical Properties
  
  

Electrical Property
Conductor  
Semiconductor  

Resistivity
83.70 nΩ·m  
34
72.70 nΩ·m  
36

Electrical Conductivity
0.12 106/cm Ω  
20
0.14 106/cm Ω  
17

Electron Affinity
28.90 kJ/mol  
37
0.00 kJ/mol  
99+

Thermal

Specific Heat
0.23 J/(kg K)  
27
0.23 J/(kg K)  
26

Molar Heat Capacity
26.74 J/mol·K  
32
26.02 J/mol·K  
40

Thermal Conductivity
81.80 W/m·K  
21
96.60 W/m·K  
16

Critical Temperature
429.75 K  
99+
594.00 K  
99+

Thermal Expansion
32.10 µm/(m·K)  
9
30.80 µm/(m·K)  
10

Enthalpy
  
  

Enthalpy of Vaporization
226.40 kJ/mol  
99+
100.00 kJ/mol  
99+

Enthalpy of Fusion
3.28 kJ/mol  
99+
6.19 kJ/mol  
99+

Enthalpy of Atomization
242.70 kJ/mol  
99+
113.00 kJ/mol  
99+

Standard Molar Entropy
57.80 J/mol.K  
27
51.80 J/mol.K  
38

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