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Potassium vs Indium


Indium vs Potassium


Periodic Table

Symbol
K  
In  

Group Number
1  
17
13  
5

Period Number
4  
5  

Block
s block  
p block  

Element Family
Alkali  
Post-​Transition  

CAS Number
7440097  
99+
7440746  
17

Space Group Name
Im_ 3m  
I4/mmm  

Space Group Number
229.00  
2
139.00  
11

Facts

Interesting Facts
  • In the list of most abundant element Potassium is ranked 7th.
  • Potassium can easily be sliced (chopped) down using knife.
  
  • 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, Mining  
Mining, Ores of metals  

History
  
  

Who Discovered
Humphry Davy  
Ferdinand Reich and Hieronymous Theodor Richter  

Discovery
In 1807  
In 1863  

Abundance
  
  

Abundance In Universe
0.00 %  
10
0.00 %  
29

Abundance In Sun
0.00 %  
9
0.00 %  
23

Abundance In Meteorites
0.07 %  
9
0.00 %  
99+

Abundance In Earth's Crust
1.50 %  
6
0.00 %  
99+

Abundance In Oceans
0.04 %  
3
0.00 %  
99+

Abundance In Humans
0.20 %  
3
0.00 %  
16

Uses

Uses & Benefits
  • Potassium’s compounds are in high demand for their application in Fertilizer manufacturing.
  • Potassium carbonate is used in glass manufacturing and Potassium carbonate in manufacturing detergent and body wash.
  
  • 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, Chemical Industry  
Aerospace Industry, Automobile Industry  

Medical Uses
Pharmaceutical Industry  
Medical Research  

Other Uses
-  
Alloys, In Nuclear Reactors  

Biological Properties
  
  

Toxicity
Toxic  
Non Toxic  

Present in Human Body
Yes  
Yes  

In Blood
1,620.00 Blood/mg dm-3  
2
0.00 Blood/mg dm-3  
40

In Bone
2,100.00 p.p.m.  
3
0.00 p.p.m.  
99+

Physical

Melting Point
63.65 °C  
99+
156.61 °C  
99+

Boiling Point
774.00 °C  
99+
2,000.00 °C  
99+

Appearance
  
  

Physical State
Solid  
Solid  

Color
Silvery Gray  
Silvery Gray  

Luster
-  
Lustrous  

Hardness
  
  

Mohs Hardness
0.40  
25
1.20  
21

Brinell Hardness
0.36 MPa  
99+
8.80 MPa  
99+

Vickers Hardness
100.00 MPa  
99+
0.01 MPa  
99+

Speed of Sound
2,000.00 m/s  
99+
1,215.00 m/s  
99+

Optical Properties
  
  

Refractive Index
1.33  
99+
3.41  
1

Reflectivity
72.00 %  
11
83.00 %  
6

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
K  
In  

Isotopes
  
  

Known Isotopes
20  
19
35  
4

Electronegativity
  
  

Pauling Electronegativity
0.82  
99+
1.78  
17

Sanderson Electronegativity
0.45  
99+
2.14  
9

Allred Rochow Electronegativity
0.91  
40
1.49  
14

Mulliken-Jaffe Electronegativity
0.73  
99+
1.76  
18

Allen Electronegativity
0.73  
99+
1.66  
21

Electropositivity
  
  

Pauling Electropositivity
3.18  
3
2.22  
38

Ionization Energies
  
  

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

2nd Energy Level
3,052.00 kJ/mol  
5
1,820.70 kJ/mol  
19

3rd Energy Level
4,420.00 kJ/mol  
8
2,704.00 kJ/mol  
40

4th Energy Level
5,877.00 kJ/mol  
18
5,210.00 kJ/mol  
26

5th Energy Level
7,975.00 kJ/mol  
14
5,580.00 kJ/mol  
99+

6th Energy Level
9,590.00 kJ/mol  
19
5,580.00 kJ/mol  
99+

7th Energy level
11,343.00 kJ/mol  
17
5,580.00 kJ/mol  
99+

8th Energy Level
14,944.00 kJ/mol  
13
5,580.00 kJ/mol  
99+

9th Energy Level
16,963.70 kJ/mol  
15
5,580.00 kJ/mol  
99+

10th Energy Level
48,610.00 kJ/mol  
3
5,580.00 kJ/mol  
99+

11th Energy Level
54,490.00 kJ/mol  
4
5,580.00 kJ/mol  
99+

12th Energy Level
60,730.00 kJ/mol  
15
5,580.00 kJ/mol  
99+

13th Energy Level
68,950.00 kJ/mol  
4
5,580.00 kJ/mol  
99+

14th Energy Level
75,900.00 kJ/mol  
5
558.30 kJ/mol  
99+

15th Energy Level
83,080.00 kJ/mol  
13
55,800.00 kJ/mol  
99+

16th Energy Level
93,400.00 kJ/mol  
7
558.30 kJ/mol  
99+

17th Energy Level
99,710.00 kJ/mol  
8
558.30 kJ/mol  
99+

18th Energy Level
4,196.00 kJ/mol  
99+
5,580.00 kJ/mol  
99+

19th Energy Level
419.20 kJ/mol  
99+
558.30 kJ/mol  
99+

20th Energy Level
419.00 kJ/mol  
99+
558.00 kJ/mol  
99+

21st Energy Level
419.20 kJ/mol  
99+
558.30 kJ/mol  
99+

22nd Energy Level
419.00 kJ/mol  
99+
558.00 kJ/mol  
99+

23rd Energy Level
419.20 kJ/mol  
99+
5,581.00 kJ/mol  
24

24th Energy Level
419.20 kJ/mol  
99+
558.30 kJ/mol  
99+

25th Energy Level
419.20 kJ/mol  
99+
558.00 kJ/mol  
99+

26th Energy Level
419.20 kJ/mol  
99+
558.30 kJ/mol  
99+

27th Energy Level
419.20 kJ/mol  
99+
558.30 kJ/mol  
99+

28th Energy Level
419.20 kJ/mol  
99+
558.30 kJ/mol  
99+

29th Energy Level
419.20 kJ/mol  
99+
558.30 kJ/mol  
99+

30th Energy Level
419.00 kJ/mol  
99+
558.00 kJ/mol  
99+

Electrochemical Equivalent
1.46 g/amp-hr  
99+
1.43 g/amp-hr  
99+

Electron Work Function
2.30 eV  
99+
4.12 eV  
31

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

Atomic

Atomic Number
19  
99+
49  
99+

Electron Configuration
[Ar] 4s1  
[Kr] 4d10 5s2 5p1  

Crystal Structure
Body Centered Cubic (BCC)  
Tetragonal (TETR)  

Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
TETR-Crystal-Structure-of-Indium.jpg#100  

Atom
  
  

Number of Protons
19  
99+
49  
99+

Number of Neutrons
20  
99+
66  
99+

Number of Electrons
19  
99+
49  
99+

Radius of an Atom
  
  

Atomic Radius
227.00 pm  
4
167.00 pm  
26

Covalent Radius
203.00 pm  
9
142.00 pm  
99+

Van der Waals Radius
275.00 pm  
7
193.00 pm  
38

Atomic Weight
39.10 amu  
99+
114.82 amu  
99+

Atomic Volume
45.46 cm3/mol  
4
15.70 cm3/mol  
99+

Adjacent Atomic Numbers
  
  

Previous Element
Aluminium
  
Cadmium
  

Next Element
Calcium
  
Tin
  

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

Lattice Constant
532.80 pm  
13
325.23 pm  
99+

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

Lattice C/A Ratio
1.69  
10
1.56  
99+

Mechanical

Density
  
  

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

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

Tensile Strength
16.00 MPa  
99+
2.50 MPa  
99+

Viscosity
0.00  
9
0.00  
25

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)  
16
0.01 (Pa)  
11

Vapor Pressure at 2000 K
0.00 (Pa)  
34
0.00 (Pa)  
24

Elasticity properties
  
  

Shear Modulus
1.30 GPa  
99+
18.00 GPa  
99+

Bulk Modulus
3.10 GPa  
99+
46.90 GPa  
27

Young's Modulus
3.53 GPa  
99+
11.00 GPa  
99+

Poisson Ratio
0.35  
9
0.44  
3

Other Mechanical Properties
-  
Ductile, Malleable  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
0.86  
99+
7.31  
99+

Magnetic Ordering
Paramagnetic  
Diamagnetic  

Permeability
0.00 H/m  
13
0.00 H/m  
17

Susceptibility
0.00  
23
0.00  
34

Electrical Properties
  
  

Electrical Property
Conductor  
Conductor  

Resistivity
72.00 nΩ·m  
37
83.70 nΩ·m  
34

Electrical Conductivity
0.14 106/cm Ω  
16
0.12 106/cm Ω  
20

Electron Affinity
48.40 kJ/mol  
27
28.90 kJ/mol  
37

Thermal

Specific Heat
0.75 J/(kg K)  
6
0.23 J/(kg K)  
27

Molar Heat Capacity
29.60 J/mol·K  
8
26.74 J/mol·K  
32

Thermal Conductivity
102.50 W/m·K  
15
81.80 W/m·K  
21

Critical Temperature
2,223.00 K  
14
429.75 K  
99+

Thermal Expansion
83.30 µm/(m·K)  
3
32.10 µm/(m·K)  
9

Enthalpy
  
  

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

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

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

Standard Molar Entropy
64.70 J/mol.K  
19
57.80 J/mol.K  
27

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