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Hafnium vs Indium

Hafnium
Indium
Indium vs Hafnium


Periodic Table
Symbol
Hf  
In  
Group Number
4  
14
13  
5
Period Number
6  
5  
Block
d block  
p block  
Element Family
Transition Metal  
Post-​Transition  
CAS Number
7440586  
30
7440746  
17
Space Group Name
P63/mmc  
I4/mmm  
Space Group Number
194.00  
7
139.00  
11
Facts
Interesting Facts
  • Hafnium metal is highly reactive, hence not found free in nature.
  • Hafnium metal as predicated after Mendeleev finished his periodic table.
  
  • Luster of Indium is bright in nature.
  • Reich and richer were looking for thallium in zinc metal and they discovered Indium metal.
  
Sources
By-product Zirconium Refining  
Mining, Ores of metals  
History
  
  
Who Discovered
Dirk Coster and George de Hevesy  
Ferdinand Reich and Hieronymous Theodor Richter  
Discovery
In 1922  
In 1863  
Abundance
  
  
Abundance In Universe
0.00 %  
26
0.00 %  
29
Abundance In Sun
0.00 %  
26
0.00 %  
23
Abundance In Meteorites
0.00 %  
37
0.00 %  
99+
Abundance In Earth's Crust
0.00 %  
31
0.00 %  
99+
Abundance In Oceans
0.00 %  
27
0.00 %  
99+
Abundance In Humans
0.00 %  
14
0.00 %  
16
Uses
Uses & Benefits
  • It has an ability to absorb neutrons and hence it is used to make control rods in nuclear submarines. And this metal is also used in Plasma welding torches.
  • It alloys with iron, titanium and niobium are very useful.
  
  • 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
Ammunition Industry  
Aerospace Industry, Automobile Industry  
Medical Uses
-  
Medical Research  
Other Uses
Alloys, In Nuclear Reactors, Nuclear Research, Research Purposes  
Alloys, In Nuclear Reactors  
Biological Properties
  
  
Toxicity
Toxic  
Non Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
40
0.00 Blood/mg dm-3  
40
In Bone
0.00 p.p.m.  
99+
0.00 p.p.m.  
99+
Physical
Melting Point
2,150.00 °C  
10
156.61 °C  
99+
Boiling Point
5,400.00 °C  
5
2,000.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
Gray  
Silvery Gray  
Luster
Metallic  
Lustrous  
Hardness
  
  
Mohs Hardness
5.50  
7
1.20  
21
Brinell Hardness
1,450.00 MPa  
6
8.80 MPa  
99+
Vickers Hardness
1,520.00 MPa  
10
0.01 MPa  
99+
Speed of Sound
3,010.00 m/s  
39
1,215.00 m/s  
99+
Optical Properties
  
  
Refractive Index
2.00  
15
3.41  
1
Reflectivity
71.00 %  
12
83.00 %  
6
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Hf  
In  
Isotopes
  
  
Known Isotopes
32  
7
35  
4
Electronegativity
  
  
Pauling Electronegativity
1.30  
33
1.78  
17
Sanderson Electronegativity
1.30  
25
2.14  
9
Allred Rochow Electronegativity
1.23  
26
1.49  
14
Mulliken-Jaffe Electronegativity
1.30  
33
1.76  
18
Allen Electronegativity
1.16  
99+
1.66  
21
Electropositivity
  
  
Pauling Electropositivity
2.70  
22
2.22  
38
Ionization Energies
  
  
1st Energy Level
658.50 kJ/mol  
40
558.30 kJ/mol  
99+
2nd Energy Level
1,440.00 kJ/mol  
99+
1,820.70 kJ/mol  
19
3rd Energy Level
2,250.00 kJ/mol  
99+
2,704.00 kJ/mol  
40
4th Energy Level
3,216.00 kJ/mol  
99+
5,210.00 kJ/mol  
26
5th Energy Level
6,585.00 kJ/mol  
33
5,580.00 kJ/mol  
99+
6th Energy Level
6,585.00 kJ/mol  
99+
5,580.00 kJ/mol  
99+
7th Energy level
6,580.00 kJ/mol  
99+
5,580.00 kJ/mol  
99+
8th Energy Level
6,580.00 kJ/mol  
99+
5,580.00 kJ/mol  
99+
9th Energy Level
6,585.00 kJ/mol  
38
5,580.00 kJ/mol  
99+
10th Energy Level
6,590.00 kJ/mol  
40
5,580.00 kJ/mol  
99+
11th Energy Level
6,585.00 kJ/mol  
40
5,580.00 kJ/mol  
99+
12th Energy Level
6,580.00 kJ/mol  
99+
5,580.00 kJ/mol  
99+
13th Energy Level
6,580.00 kJ/mol  
35
5,580.00 kJ/mol  
99+
14th Energy Level
658.50 kJ/mol  
99+
558.30 kJ/mol  
99+
15th Energy Level
65,800.00 kJ/mol  
34
55,800.00 kJ/mol  
99+
16th Energy Level
658.50 kJ/mol  
99+
558.30 kJ/mol  
99+
17th Energy Level
658.50 kJ/mol  
99+
558.30 kJ/mol  
99+
18th Energy Level
6,585.00 kJ/mol  
36
5,580.00 kJ/mol  
99+
19th Energy Level
658.50 kJ/mol  
99+
558.30 kJ/mol  
99+
20th Energy Level
658.00 kJ/mol  
37
558.00 kJ/mol  
99+
21st Energy Level
658.50 kJ/mol  
99+
558.30 kJ/mol  
99+
22nd Energy Level
658.00 kJ/mol  
31
558.00 kJ/mol  
99+
23rd Energy Level
658.50 kJ/mol  
99+
5,581.00 kJ/mol  
24
24th Energy Level
658.50 kJ/mol  
31
558.30 kJ/mol  
99+
25th Energy Level
658.00 kJ/mol  
33
558.00 kJ/mol  
99+
26th Energy Level
658.50 kJ/mol  
32
558.30 kJ/mol  
99+
27th Energy Level
658.50 kJ/mol  
33
558.30 kJ/mol  
99+
28th Energy Level
658.50 kJ/mol  
38
558.30 kJ/mol  
99+
29th Energy Level
658.50 kJ/mol  
39
558.30 kJ/mol  
99+
30th Energy Level
658.00 kJ/mol  
35
558.00 kJ/mol  
99+
Electrochemical Equivalent
1.66 g/amp-hr  
99+
1.43 g/amp-hr  
99+
Electron Work Function
3.90 eV  
36
4.12 eV  
31
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility  
Ionization, Radioactive Isotopes, Radioactivity, Solubility  
Atomic
Atomic Number
72  
99+
49  
99+
Electron Configuration
[Xe] 4f14 5d2 6s2  
[Kr] 4d10 5s2 5p1  
Crystal Structure
Hexagonal Close Packed (HCP)  
Tetragonal (TETR)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
TETR-Crystal-Structure-of-Indium.jpg#100  
Atom
  
  
Number of Protons
72  
99+
49  
99+
Number of Neutrons
106  
30
66  
99+
Number of Electrons
72  
99+
49  
99+
Radius of an Atom
  
  
Atomic Radius
159.00 pm  
30
167.00 pm  
26
Covalent Radius
175.00 pm  
25
142.00 pm  
99+
Van der Waals Radius
200.00 pm  
35
193.00 pm  
38
Atomic Weight
178.49 amu  
39
114.82 amu  
99+
Atomic Volume
13.60 cm3/mol  
99+
15.70 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Lutetium
  
Cadmium
  
Next Element
Tantalum
  
Tin
  
Valence Electron Potential
81.00 (-eV)  
16
54.00 (-eV)  
26
Lattice Constant
319.64 pm  
99+
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  
34
1.56  
99+
Mechanical
Density
  
  
Density At Room Temperature
13.31 g/cm3  
27
7.31 g/cm3  
99+
Density When Liquid (at m.p.)
12.00 g/cm3  
31
7.02 g/cm3  
99+
Tensile Strength
445.00 MPa  
9
2.50 MPa  
99+
Viscosity
0.00  
28
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.01 (Pa)  
11
Vapor Pressure at 2000 K
0.00 (Pa)  
25
0.00 (Pa)  
24
Elasticity properties
  
  
Shear Modulus
30.00 GPa  
27
18.00 GPa  
99+
Bulk Modulus
110.00 GPa  
15
46.90 GPa  
27
Young's Modulus
78.00 GPa  
27
11.00 GPa  
99+
Poisson Ratio
0.37  
7
0.44  
3
Other Mechanical Properties
Ductile, Malleable  
Ductile, Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
13.31  
30
7.31  
99+
Magnetic Ordering
Paramagnetic  
Diamagnetic  
Permeability
0.00 H/m  
9
0.00 H/m  
17
Susceptibility
0.00  
13
0.00  
34
Electrical Properties
  
  
Electrical Property
Conductor  
Conductor  
Resistivity
331.00 nΩ·m  
14
83.70 nΩ·m  
34
Electrical Conductivity
0.03 106/cm Ω  
99+
0.12 106/cm Ω  
20
Electron Affinity
0.00 kJ/mol  
99+
28.90 kJ/mol  
37
Thermal
Specific Heat
0.14 J/(kg K)  
38
0.23 J/(kg K)  
27
Molar Heat Capacity
25.73 J/mol·K  
99+
26.74 J/mol·K  
32
Thermal Conductivity
23.00 W/m·K  
99+
81.80 W/m·K  
21
Critical Temperature
2,500.00 K  
11
429.75 K  
99+
Thermal Expansion
5.90 µm/(m·K)  
99+
32.10 µm/(m·K)  
9
Enthalpy
  
  
Enthalpy of Vaporization
661.10 kJ/mol  
6
226.40 kJ/mol  
99+
Enthalpy of Fusion
25.10 kJ/mol  
8
3.28 kJ/mol  
99+
Enthalpy of Atomization
703.00 kJ/mol  
5
242.70 kJ/mol  
99+
Standard Molar Entropy
43.60 J/mol.K  
99+
57.80 J/mol.K  
27
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