1 Periodic Table
1.1 Symbol
1.2 Group Number
1.3 Period Number
1.4 Block
1.5 Element Family
Alkali
Probably Post-Transition
1.6 CAS Number
744009754101143
7429905
54386242
1.7 Space Group Name
1.8 Space Group Number
2 Facts
2.1 Interesting Facts
- In the list of most abundant element Potassium is ranked 7th.
- Potassium can easily be sliced (chopped) down using knife.
Not Available
2.2 Sources
Found in Minerals, Mining
Synthetically Produced
2.3 History
2.3.1 Who Discovered
Humphry Davy
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory
2.3.2 Discovery
2.4 Abundance
2.4.1 Abundance In Universe
2.4.3 Abundance In Sun
~0.0004 %~-9999 %
1E-08
0.1
2.4.6 Abundance In Meteorites
2.4.9 Abundance In Earth's Crust
2.4.12 Abundance In Oceans
2.4.14 Abundance In Humans
3 Uses
3.1 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.
- Currently known uses of Ununseptium metal are limited to research purpose only.
3.1.1 Industrial Uses
Ammunition Industry, Chemical Industry
NA
3.1.2 Medical Uses
Pharmaceutical Industry
NA
3.1.3 Other Uses
3.2 Biological Properties
3.2.1 Toxicity
3.2.2 Present in Human Body
3.2.3 In Blood
1,620.00 Blood/mg dm-3NA
0
1970
3.2.5 In Bone
2,100.00 p.p.m.NA
0
170000
4 Physical
4.1 Melting Point
63.65 °C400.00 °C
27
3410
4.3 Boiling Point
774.00 °C610.00 °C
147
5660
4.5 Appearance
4.5.1 Physical State
4.5.2 Color
4.5.3 Luster
4.6 Hardness
4.6.1 Mohs Hardness
5.1.1 Brinell Hardness
5.4.2 Vickers Hardness
5.5 Speed of Sound
5.6 Optical Properties
5.6.1 Refractive Index
5.6.3 Reflectivity
5.8 Allotropes
5.8.1 α Allotropes
Not Available
Not Available
5.8.2 β Allotropes
Not Available
Not Available
5.8.3 γ Allotropes
Not Available
Not Available
6 Chemical
6.1 Chemical Formula
6.2 Isotopes
6.2.1 Known Isotopes
6.3 Electronegativity
6.3.1 Pauling Electronegativity
6.3.3 Sanderson Electronegativity
6.4.1 Allred Rochow Electronegativity
6.5.1 Mulliken-Jaffe Electronegativity
6.7.1 Allen Electronegativity
6.9 Electropositivity
6.9.1 Pauling Electropositivity
6.10 Ionization Energies
6.10.1 1st Energy Level
418.80 kJ/mol742.90 kJ/mol
375.7
26130
6.12.1 2nd Energy Level
3,052.00 kJ/mol1,785.00 kJ/mol
710.2162
28750
7.1.2 3rd Energy Level
4,420.00 kJ/molNA
1600
34230
7.1.4 4th Energy Level
5,877.00 kJ/molNA
2780
37066
7.2.1 5th Energy Level
7,975.00 kJ/molNA
4305.2
97510
7.2.2 6th Energy Level
9,590.00 kJ/molNA
5715.8
105800
7.4.2 7th Energy level
11,343.00 kJ/molNA
7226.8
114300
7.4.3 8th Energy Level
14,944.00 kJ/molNA
8857.4
125300
7.4.5 9th Energy Level
16,963.70 kJ/molNA
14110
134700
7.5.2 10th Energy Level
48,610.00 kJ/molNA
17100
144300
7.5.3 11th Energy Level
54,490.00 kJ/molNA
19900
169988
7.5.5 12th Energy Level
60,730.00 kJ/molNA
22219
189368
7.5.7 13th Energy Level
68,950.00 kJ/molNA
26930
76015
7.6.1 14th Energy Level
75,900.00 kJ/molNA
29196
86450
7.7.1 15th Energy Level
83,080.00 kJ/molNA
41987
97510
8.1.2 16th Energy Level
93,400.00 kJ/molNA
47206
109480
8.1.5 17th Energy Level
99,710.00 kJ/molNA
52737
122200
8.1.7 18th Energy Level
8.2.3 19th Energy Level
8.2.5 20th Energy Level
8.2.6 21st Energy Level
8.2.7 22nd Energy Level
8.2.9 23rd Energy Level
8.2.10 24th Energy Level
9.1.1 25th Energy Level
9.1.2 26th Energy Level
9.2.1 27th Energy Level
9.3.1 28th Energy Level
9.3.2 29th Energy Level
9.4.1 30th Energy Level
9.5 Electrochemical Equivalent
1.46 g/amp-hrNA
0.16812
8.3209
9.7 Electron Work Function
9.9 Other Chemical Properties
Chemical Stability, Flammability, Ionization, Solubility
Chemical Stability, Ionization
10 Atomic
10.1 Atomic Number
10.2 Electron Configuration
[Ar] 4s1
[Rn] 5f14 6d10 7s2 7p5
10.3 Crystal Structure
Body Centered Cubic (BCC)
Not Known
10.3.1 Crystal Lattice
10.4 Atom
10.4.1 Number of Protons
10.4.3 Number of Neutrons
10.4.5 Number of Electrons
10.6 Radius of an Atom
10.6.1 Atomic Radius
10.6.2 Covalent Radius
10.6.3 Van der Waals Radius
10.7 Atomic Weight
39.10 amu294.00 amu
6.94
294
10.8 Atomic Volume
45.46 cm3/molNA
1.39
71.07
10.9 Adjacent Atomic Numbers
10.9.1 Previous Element
10.9.2 Next Element
10.10 Valence Electron Potential
10.11 Lattice Constant
532.80 pmNA
228.58
891.25
10.12 Lattice Angles
10.13 Lattice C/A Ratio
11 Mechanical
11.1 Density
11.1.1 Density At Room Temperature
0.86 g/cm37.10 g/cm3
0.534
40.7
11.1.2 Density When Liquid (at m.p.)
11.2 Tensile Strength
11.3 Viscosity
11.4 Vapor Pressure
11.4.1 Vapor Pressure at 1000 K
11.4.2 Vapor Pressure at 2000 K
11.5 Elasticity properties
11.5.1 Shear Modulus
11.5.2 Bulk Modulus
11.5.3 Young's Modulus
11.6 Poisson Ratio
11.7 Other Mechanical Properties
12 Magnetic
12.1 Magnetic Characteristics
12.1.1 Specific Gravity
12.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
12.1.3 Permeability
12.1.4 Susceptibility
12.2 Electrical Properties
12.2.1 Electrical Property
12.2.2 Resistivity
12.2.3 Electrical Conductivity
0.14 106/cm ΩNA
0.00666
0.63
12.2.4 Electron Affinity
13 Thermal
13.1 Specific Heat
13.2 Molar Heat Capacity
29.60 J/mol·KNA
16.443
62.7
13.3 Thermal Conductivity
13.4 Critical Temperature
13.5 Thermal Expansion
13.6 Enthalpy
13.6.1 Enthalpy of Vaporization
77.50 kJ/molNA
7.32
799.1
13.6.2 Enthalpy of Fusion
13.6.3 Enthalpy of Atomization
13.7 Standard Molar Entropy
64.70 J/mol.KNA
9.5
198.1