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Erbium vs Indium

Erbium
Indium
Indium vs Erbium


Periodic Table
Symbol
Er  
In  
Group Number
3  
15
13  
5
Period Number
6  
5  
Block
f block  
p block  
Element Family
Lanthanide  
Post-​Transition  
CAS Number
7440520  
35
7440746  
17
Space Group Name
P63/mmc  
I4/mmm  
Space Group Number
194.00  
7
139.00  
11
Facts
Interesting Facts
  • Erbium metal is used as alloyed with Vanadium to make it softer.
  • Recent studies shows that it is helpful for metabolism.
  
  • Luster of Indium is bright in nature.
  • Reich and richer were looking for thallium in zinc metal and they discovered Indium metal.
  
Sources
Mining  
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
0.00 %  
23
0.00 %  
29
Abundance In Sun
0.00 %  
26
0.00 %  
23
Abundance In Meteorites
0.00 %  
36
0.00 %  
99+
Abundance In Earth's Crust
0.00 %  
32
0.00 %  
99+
Abundance In Oceans
0.00 %  
36
0.00 %  
99+
Abundance In Humans
0.00 %  
24
0.00 %  
16
Uses
Uses & Benefits
  • It has a tendency to get tarnished in the open air, but when alloyed with elements like erbium, vanadium, its hardness levels decreases.
  • Its compounds like Erbium oxide is used in safety glasses of welders and metal workers.
  
  • 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
Chemical Industry  
Aerospace Industry, Automobile Industry  
Medical Uses
-  
Medical Research  
Other Uses
Alloys  
Alloys, In Nuclear Reactors  
Biological Properties
  
  
Toxicity
Mildly 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
1,522.00 °C  
28
156.61 °C  
99+
Boiling Point
2,510.00 °C  
99+
2,000.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
Silvery Gray  
Luster
Lustrous  
Lustrous  
Hardness
  
  
Mohs Hardness
1.00  
22
1.20  
21
Brinell Hardness
814.00 MPa  
12
8.80 MPa  
99+
Vickers Hardness
589.00 MPa  
30
0.01 MPa  
99+
Speed of Sound
2,830.00 m/s  
99+
1,215.00 m/s  
99+
Optical Properties
  
  
Refractive Index
1.76  
24
3.41  
1
Reflectivity
36.00 %  
33
83.00 %  
6
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Er  
In  
Isotopes
  
  
Known Isotopes
31  
8
35  
4
Electronegativity
  
  
Pauling Electronegativity
1.24  
37
1.78  
17
Sanderson Electronegativity
1.24  
29
2.14  
9
Allred Rochow Electronegativity
1.11  
30
1.49  
14
Mulliken-Jaffe Electronegativity
1.24  
36
1.76  
18
Allen Electronegativity
1.24  
99+
1.66  
21
Electropositivity
  
  
Pauling Electropositivity
2.76  
18
2.22  
38
Ionization Energies
  
  
1st Energy Level
589.30 kJ/mol  
99+
558.30 kJ/mol  
99+
2nd Energy Level
1,150.00 kJ/mol  
99+
1,820.70 kJ/mol  
19
3rd Energy Level
2,194.00 kJ/mol  
99+
2,704.00 kJ/mol  
40
4th Energy Level
4,120.00 kJ/mol  
99+
5,210.00 kJ/mol  
26
5th Energy Level
5,897.00 kJ/mol  
99+
5,580.00 kJ/mol  
99+
6th Energy Level
5,897.00 kJ/mol  
99+
5,580.00 kJ/mol  
99+
7th Energy level
5,890.00 kJ/mol  
99+
5,580.00 kJ/mol  
99+
8th Energy Level
5,890.00 kJ/mol  
99+
5,580.00 kJ/mol  
99+
9th Energy Level
4,240.00 kJ/mol  
99+
5,580.00 kJ/mol  
99+
10th Energy Level
5,890.00 kJ/mol  
99+
5,580.00 kJ/mol  
99+
11th Energy Level
5,890.00 kJ/mol  
99+
5,580.00 kJ/mol  
99+
12th Energy Level
5,890.00 kJ/mol  
99+
5,580.00 kJ/mol  
99+
13th Energy Level
5,890.00 kJ/mol  
99+
5,580.00 kJ/mol  
99+
14th Energy Level
5,890.00 kJ/mol  
37
558.30 kJ/mol  
99+
15th Energy Level
58,900.00 kJ/mol  
99+
55,800.00 kJ/mol  
99+
16th Energy Level
58,900.00 kJ/mol  
38
558.30 kJ/mol  
99+
17th Energy Level
589.30 kJ/mol  
99+
558.30 kJ/mol  
99+
18th Energy Level
5,890.00 kJ/mol  
99+
5,580.00 kJ/mol  
99+
19th Energy Level
589.30 kJ/mol  
99+
558.30 kJ/mol  
99+
20th Energy Level
589.00 kJ/mol  
99+
558.00 kJ/mol  
99+
21st Energy Level
5,897.00 kJ/mol  
19
558.30 kJ/mol  
99+
22nd Energy Level
589.00 kJ/mol  
99+
558.00 kJ/mol  
99+
23rd Energy Level
589.30 kJ/mol  
99+
5,581.00 kJ/mol  
24
24th Energy Level
589.30 kJ/mol  
99+
558.30 kJ/mol  
99+
25th Energy Level
589.00 kJ/mol  
99+
558.00 kJ/mol  
99+
26th Energy Level
589.30 kJ/mol  
99+
558.30 kJ/mol  
99+
27th Energy Level
589.30 kJ/mol  
99+
558.30 kJ/mol  
99+
28th Energy Level
589.30 kJ/mol  
99+
558.30 kJ/mol  
99+
29th Energy Level
589.30 kJ/mol  
99+
558.30 kJ/mol  
99+
30th Energy Level
589.70 kJ/mol  
99+
558.00 kJ/mol  
99+
Electrochemical Equivalent
2.08 g/amp-hr  
32
1.43 g/amp-hr  
99+
Electron Work Function
5.93 eV  
2
4.12 eV  
31
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility  
Ionization, Radioactive Isotopes, Radioactivity, Solubility  
Atomic
Atomic Number
68  
99+
49  
99+
Electron Configuration
[Xe] 4f12 6s2  
[Kr] 4d10 5s2 5p1  
Crystal Structure
Hexagonal Close Packed (HCP)  
Tetragonal (TETR)  
Crystal Lattice
HCP-Crystal-Structure-of-Erbium.jpg#100  
TETR-Crystal-Structure-of-Indium.jpg#100  
Atom
  
  
Number of Protons
68  
99+
49  
99+
Number of Neutrons
99  
34
66  
99+
Number of Electrons
68  
99+
49  
99+
Radius of an Atom
  
  
Atomic Radius
176.00 pm  
20
167.00 pm  
26
Covalent Radius
189.00 pm  
19
142.00 pm  
99+
Van der Waals Radius
0.00 pm  
99+
193.00 pm  
38
Atomic Weight
167.26 amu  
99+
114.82 amu  
99+
Atomic Volume
18.40 cm3/mol  
37
15.70 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Holmium
  
Cadmium
  
Next Element
Thulium
  
Tin
  
Valence Electron Potential
49.00 (-eV)  
30
54.00 (-eV)  
26
Lattice Constant
355.88 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
1.57  
40
1.56  
99+
Mechanical
Density
  
  
Density At Room Temperature
9.07 g/cm3  
99+
7.31 g/cm3  
99+
Density When Liquid (at m.p.)
8.86 g/cm3  
99+
7.02 g/cm3  
99+
Tensile Strength
350.00 MPa  
12
2.50 MPa  
99+
Viscosity
0.00  
25
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
21
0.01 (Pa)  
11
Vapor Pressure at 2000 K
0.00 (Pa)  
30
0.00 (Pa)  
24
Elasticity properties
  
  
Shear Modulus
28.30 GPa  
31
18.00 GPa  
99+
Bulk Modulus
44.40 GPa  
31
46.90 GPa  
27
Young's Modulus
69.90 GPa  
31
11.00 GPa  
99+
Poisson Ratio
0.24  
28
0.44  
3
Other Mechanical Properties
Malleable  
Ductile, Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
9.07  
99+
7.31  
99+
Magnetic Ordering
Paramagnetic  
Diamagnetic  
Permeability
0.00 H/m  
17
0.00 H/m  
17
Susceptibility
0.00  
11
0.00  
34
Electrical Properties
  
  
Electrical Property
Conductor  
Conductor  
Resistivity
0.86 nΩ·m  
99+
83.70 nΩ·m  
34
Electrical Conductivity
0.01 106/cm Ω  
99+
0.12 106/cm Ω  
20
Electron Affinity
50.00 kJ/mol  
26
28.90 kJ/mol  
37
Thermal
Specific Heat
0.17 J/(kg K)  
35
0.23 J/(kg K)  
27
Molar Heat Capacity
28.12 J/mol·K  
14
26.74 J/mol·K  
32
Thermal Conductivity
14.50 W/m·K  
99+
81.80 W/m·K  
21
Critical Temperature
1,802.00 K  
30
429.75 K  
99+
Thermal Expansion
12.20 µm/(m·K)  
99+
32.10 µm/(m·K)  
9
Enthalpy
  
  
Enthalpy of Vaporization
261.00 kJ/mol  
99+
226.40 kJ/mol  
99+
Enthalpy of Fusion
17.20 kJ/mol  
15
3.28 kJ/mol  
99+
Enthalpy of Atomization
314.00 kJ/mol  
99+
242.70 kJ/mol  
99+
Standard Molar Entropy
73.10 J/mol.K  
11
57.80 J/mol.K  
27
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