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Terbium Indium Comparison


Indium Terbium comparison


Periodic Table

Symbol
Tb   
In   

Group Number
Not Available   
13   
5

Period Number
6   
5   

Block
f block   
p block   

Element Family
Lanthanide   
Post-​Transition   

CAS Number
7440279   
99+
7440746   
17

Space Group Name
P63/mmc   
I4/mmm   

Space Group Number
194.00   
5
139.00   
8

Facts

Interesting Facts
  • At times Terbium metal acts same as Calcium.
  • Terbium metal closely similar to Lanthanum metal.
  
  • Luster of Indium is bright in nature.
  • Reich and richer were looking for thallium in zinc metal and they discovered Indium metal.
  

Sources
Found in Minerals, Found with Other Rare Earth Metals, Mining, Ores of Minerals   
Mining, Ores of metals   

History
  
  

Who Discovered
Carl Gustaf Mosander   
Ferdinand Reich and Hieronymous Theodor Richter   

Discovery
In 1842   
In 1863   

Abundance
  
  

Abundance In Universe
5 * 10-8 %   
27
3 * 10-8 %   
28

Abundance In Sun
~0.00000001 %   
29
~0.0000004 %   
23

Abundance In Meteorites
0.00 %   
99+
0.00 %   
99+

Abundance In Earth's Crust
0.00 %   
40
0.00 %   
99+

Abundance In Oceans
0.00 %   
99+
0.00 %   
99+

Uses

Uses & Benefits
  • Terbium salts are used in optical devices like laser devices.
  • Terbium’s alloy lengthens and shortens the magnetic field and this effect forms loudspeaker.
  
  • 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.
  

Industrial Uses
Electronic Industry   
Aerospace Industry, Automobile Industry   

Medical Uses
NA   
Medical Research   

Other Uses
Alloys   
Alloys, In Nuclear Reactors   

Biological Properties
  
  

Toxicity
Low Toxic   
Non Toxic   

Present in Human Body
No   
Yes   

Physical Properties

Melting Point
1,356.00 °C   
33
156.61 °C   
99+

Boiling Point
3,123.00 °C   
29
2,000.00 °C   
99+

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery White   
Silvery Gray   

Luster
Metallic   
Lustrous   

Hardness
  
  

Mohs Hardness
Not Available   
1.20   
20

Brinell Hardness
677.00 MPa   
17
8.80 MPa   
99+

Vickers Hardness
863.00 MPa   
13
Not Available   

Speed of Sound
2,620.00 m/s   
35
1,215.00 m/s   
99+

Optical Properties
  
  

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
Tb   
In   

Isotopes
  
  

Known Isotopes
26   
13
35   
4

Electronegativity
  
  

Pauling Electronegativity
Not Available   
1.78   
16

Sanderson Electronegativity
Not Available   
2.14   
8

Allred Rochow Electronegativity
1.10   
30
1.49   
13

Mulliken-Jaffe Electronegativity
Not Available   
1.76   
10

Allen Electronegativity
Not Available   
1.66   
18

Electropositivity
  
  

Pauling Electropositivity
Not Available   
2.22   
38

Ionization Energies
  
  

1st Energy Level
603.40 kJ/mol   
99+
558.30 kJ/mol   
99+

2nd Energy Level
1,174.80 kJ/mol   
99+
1,820.70 kJ/mol   
18

3rd Energy Level
2,417.00 kJ/mol   
99+
2,704.00 kJ/mol   
39

4th Energy Level
4,203.00 kJ/mol   
31
5,210.00 kJ/mol   
17

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

Electron Work Function
3.00 eV   
36
4.12 eV   
24

Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes, Radioactivity, Solubility   

Atomic Properties

Atomic Number
65   
99+
49   
99+

Electron Configuration
[Xe] 4f9 6s2   
[Kr] 4d10 5s2 5p1   

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

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

Atom
  
  

Number of Protons
65   
99+
49   
99+

Number of Neutrons
94   
36
66   
99+

Number of Electrons
65   
99+
49   
99+

Radius of an Atom
  
  

Atomic Radius
177.00 pm   
17
167.00 pm   
24

Covalent Radius
194.00 pm   
16
142.00 pm   
99+

Van der Waals Radius
221.00 pm   
22
193.00 pm   
31

Atomic Weight
158.93 amu   
99+
114.82 amu   
99+

Atomic Volume
19.20 cm3/mol   
22
15.70 cm3/mol   
33

Adjacent Atomic Numbers
  
  

Previous Element
Gadolinium
  
Cadmium
  

Next Element
Dysprosium
  
Tin
  

Valence Electron Potential
46.80 (-eV)   
33
54.00 (-eV)   
25

Lattice Constant
360.10 pm   
36
325.23 pm   
99+

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

Lattice C/A Ratio
1.58   
13
Not Available   

Mechanical Properties

Density
  
  

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

Density When Liquid (at m.p.)
7.65 g/cm3   
30
7.02 g/cm3   
33

Tensile Strength
60.00 MPa   
17
2.50 MPa   
21

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)   
29
0.01 (Pa)   
11

Vapor Pressure at 2000 K
12.50 (Pa)   
8
Not Available   

Elasticity properties
  
  

Shear Modulus
22.10 GPa   
32
Not Available   

Bulk Modulus
38.70 GPa   
33
Not Available   

Young's Modulus
55.70 GPa   
34
11.00 GPa   
99+

Poisson Ratio
0.26   
21
Not Available   

Other Mechanical Properties
Ductile, Malleable   
Ductile, Malleable   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
8.23   
39
7.31   
99+

Magnetic Ordering
Paramagnetic   
Diamagnetic   

Electrical Properties
  
  

Electrical Property
Conductor   
Conductor   

Resistivity
1.15 nΩ·m   
99+
83.70 nΩ·m   
34

Electrical Conductivity
0.01 106/cm Ω   
99+
0.12 106/cm Ω   
17

Electron Affinity
50.00 kJ/mol   
21
28.90 kJ/mol   
31

Thermal Properties

Specific Heat
0.18 J/(kg K)   
33
0.23 J/(kg K)   
27

Molar Heat Capacity
28.91 J/mol·K   
9
26.74 J/mol·K   
25

Thermal Conductivity
11.10 W/m·K   
99+
81.80 W/m·K   
21

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
10.30 µm/(m·K)   
38
32.10 µm/(m·K)   
9

Enthalpy
  
  

Enthalpy of Vaporization
330.90 kJ/mol   
26
226.40 kJ/mol   
40

Enthalpy of Fusion
10.80 kJ/mol   
34
3.28 kJ/mol   
99+

Enthalpy of Atomization
314.00 kJ/mol   
33
242.70 kJ/mol   
99+

Standard Molar Entropy
73.20 J/mol.K   
10
57.80 J/mol.K   
22

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