1 Periodic Table
1.1 Symbol
1.2 Group Number
2.3 Period Number
3.2 Block
3.3 Element Family
3.4 CAS Number
540851647440097
7429905
54386242
3.8 Space Group Name
3.9 Space Group Number
4 Facts
4.1 Interesting Facts
Not Available
- In the list of most abundant element Potassium is ranked 7th.
- Potassium can easily be sliced (chopped) down using knife.
4.2 Sources
NA
Found in Minerals, Mining
4.3 History
4.3.1 Who Discovered
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory
Humphry Davy
4.3.2 Discovery
4.4 Abundance
4.4.1 Abundance In Universe
4.6.2 Abundance In Sun
~-9999 %~0.0004 %
1E-08
0.1
5.2.2 Abundance In Meteorites
5.3.3 Abundance In Earth's Crust
5.3.6 Abundance In Oceans
5.4.2 Abundance In Humans
6 Uses
6.1 Uses & Benefits
- Currently known uses of Flerovium metal are limited to research purpose only.
- 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.
6.1.1 Industrial Uses
NA
Ammunition Industry, Chemical Industry
6.1.2 Medical Uses
NA
Pharmaceutical Industry
6.1.3 Other Uses
Alloys, Research Purposes
NA
6.2 Biological Properties
6.2.1 Toxicity
6.2.2 Present in Human Body
6.2.3 In Blood
NA1,620.00 Blood/mg dm-3
0
1970
6.2.6 In Bone
NA2,100.00 p.p.m.
0
170000
7 Physical
7.1 Melting Point
7.2 Boiling Point
147.00 °C774.00 °C
147
5660
7.3 Appearance
7.3.1 Physical State
7.3.2 Color
7.3.3 Luster
7.4 Hardness
7.4.1 Mohs Hardness
7.4.5 Brinell Hardness
7.4.9 Vickers Hardness
7.5 Speed of Sound
7.6 Optical Properties
7.6.1 Refractive Index
7.6.4 Reflectivity
7.7 Allotropes
7.7.1 α Allotropes
Not Available
Not Available
7.7.2 β Allotropes
Not Available
Not Available
7.7.3 γ Allotropes
Not Available
Not Available
8 Chemical
8.1 Chemical Formula
8.2 Isotopes
8.2.1 Known Isotopes
8.4 Electronegativity
8.4.1 Pauling Electronegativity
9.1.1 Sanderson Electronegativity
9.4.3 Allred Rochow Electronegativity
9.4.5 Mulliken-Jaffe Electronegativity
9.5.2 Allen Electronegativity
9.6 Electropositivity
9.6.1 Pauling Electropositivity
9.8 Ionization Energies
9.8.1 1st Energy Level
823.90 kJ/mol418.80 kJ/mol
375.7
26130
9.9.1 2nd Energy Level
1,601.60 kJ/mol3,052.00 kJ/mol
710.2162
28750
9.9.2 3rd Energy Level
3,367.30 kJ/mol4,420.00 kJ/mol
1600
34230
9.11.1 4th Energy Level
4,399.70 kJ/mol5,877.00 kJ/mol
2780
37066
9.11.2 5th Energy Level
5,847.00 kJ/mol7,975.00 kJ/mol
4305.2
97510
9.12.1 6th Energy Level
NA9,590.00 kJ/mol
5715.8
105800
9.13.1 7th Energy level
NA11,343.00 kJ/mol
7226.8
114300
9.14.1 8th Energy Level
NA14,944.00 kJ/mol
8857.4
125300
10.1.2 9th Energy Level
NA16,963.70 kJ/mol
14110
134700
10.1.3 10th Energy Level
NA48,610.00 kJ/mol
17100
144300
10.1.5 11th Energy Level
NA54,490.00 kJ/mol
19900
169988
10.1.6 12th Energy Level
NA60,730.00 kJ/mol
22219
189368
10.2.1 13th Energy Level
NA68,950.00 kJ/mol
26930
76015
10.2.2 14th Energy Level
NA75,900.00 kJ/mol
29196
86450
10.3.1 15th Energy Level
NA83,080.00 kJ/mol
41987
97510
10.4.2 16th Energy Level
NA93,400.00 kJ/mol
47206
109480
10.4.3 17th Energy Level
NA99,710.00 kJ/mol
52737
122200
10.4.5 18th Energy Level
10.4.6 19th Energy Level
10.5.2 20th Energy Level
10.5.4 21st Energy Level
10.5.5 22nd Energy Level
10.5.7 23rd Energy Level
10.6.1 24th Energy Level
10.6.2 25th Energy Level
11.1.2 26th Energy Level
11.1.5 27th Energy Level
11.1.6 28th Energy Level
11.1.8 29th Energy Level
11.2.3 30th Energy Level
11.3 Electrochemical Equivalent
NA1.46 g/amp-hr
0.16812
8.3209
11.4 Electron Work Function
11.5 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Chemical Stability, Flammability, Ionization, Solubility
12 Atomic
12.1 Atomic Number
13.2 Electron Configuration
[Rn] 5f14 6d10 7s2 7p2
[Ar] 4s1
13.3 Crystal Structure
Not Known
Body Centered Cubic (BCC)
13.3.1 Crystal Lattice
13.4 Atom
13.4.1 Number of Protons
13.5.1 Number of Neutrons
13.5.2 Number of Electrons
13.8 Radius of an Atom
13.8.1 Atomic Radius
180.00 pm227.00 pm
112
265
13.9.1 Covalent Radius
171.00 pm203.00 pm
96
260
13.9.2 Van der Waals Radius
13.11 Atomic Weight
289.00 amu39.10 amu
6.94
294
13.12 Atomic Volume
NA45.46 cm3/mol
1.39
71.07
13.13 Adjacent Atomic Numbers
13.13.1 Previous Element
13.13.2 Next Element
13.14 Valence Electron Potential
13.16 Lattice Constant
NA532.80 pm
228.58
891.25
13.17 Lattice Angles
13.18 Lattice C/A Ratio
14 Mechanical
14.1 Density
14.1.1 Density At Room Temperature
14.00 g/cm30.86 g/cm3
0.534
40.7
14.1.2 Density When Liquid (at m.p.)
14.2 Tensile Strength
14.3 Viscosity
14.4 Vapor Pressure
14.4.1 Vapor Pressure at 1000 K
14.4.2 Vapor Pressure at 2000 K
14.5 Elasticity properties
14.5.1 Shear Modulus
14.5.2 Bulk Modulus
14.5.3 Young's Modulus
14.6 Poisson Ratio
14.7 Other Mechanical Properties
15 Magnetic
15.1 Magnetic Characteristics
15.1.1 Specific Gravity
15.1.2 Magnetic Ordering
15.1.3 Permeability
15.1.4 Susceptibility
15.2 Electrical Properties
15.2.1 Electrical Property
15.2.2 Resistivity
15.2.3 Electrical Conductivity
NA0.14 106/cm Ω
0.00666
0.63
15.2.4 Electron Affinity
16 Thermal
16.1 Specific Heat
16.2 Molar Heat Capacity
NA29.60 J/mol·K
16.443
62.7
16.3 Thermal Conductivity
16.4 Critical Temperature
16.5 Thermal Expansion
16.6 Enthalpy
16.6.1 Enthalpy of Vaporization
NA77.50 kJ/mol
7.32
799.1
16.6.2 Enthalpy of Fusion
16.6.3 Enthalpy of Atomization
16.7 Standard Molar Entropy
NA64.70 J/mol.K
9.5
198.1