1 Periodic Table
1.1 Symbol
1.2 Group Number
1.3 Period Number
1.4 Block
1.5 Element Family
Probably Transition
Alkali
1.6 CAS Number
540837717440097
7429905
54386242
1.7 Space Group Name
1.8 Space Group Number
2 Facts
2.1 Interesting Facts
Not Available
- In the list of most abundant element Potassium is ranked 7th.
- Potassium can easily be sliced (chopped) down using knife.
2.2 Sources
Synthetically Produced
Found in Minerals, Mining
2.3 History
2.3.1 Who Discovered
Gesellschaft für Schwerionenforschung
Humphry Davy
2.3.2 Discovery
2.4 Abundance
2.4.1 Abundance In Universe
2.4.3 Abundance In Sun
~-9999 %~0.0004 %
1E-08
0.1
2.4.5 Abundance In Meteorites
2.4.8 Abundance In Earth's Crust
2.4.11 Abundance In Oceans
2.4.13 Abundance In Humans
3 Uses
3.1 Uses & Benefits
- Currently known uses of Darmstadtium metal are limited to research purpose only. As only few atoms of this metal are produced.
- 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.
3.1.2 Industrial Uses
NA
Ammunition Industry, Chemical Industry
3.1.3 Medical Uses
NA
Pharmaceutical Industry
3.1.4 Other Uses
3.2 Biological Properties
3.2.1 Toxicity
3.2.2 Present in Human Body
3.2.3 In Blood
0.00 Blood/mg dm-31,620.00 Blood/mg dm-3
0
1970
3.2.5 In Bone
0.00 p.p.m.2,100.00 p.p.m.
0
170000
4 Physical
4.1 Melting Point
4.2 Boiling Point
4.4 Appearance
4.4.1 Physical State
4.4.2 Color
4.4.3 Luster
4.5 Hardness
4.5.1 Mohs Hardness
5.1.1 Brinell Hardness
5.4.2 Vickers Hardness
5.5 Speed of Sound
5,090.00 m/s2,000.00 m/s
818
16200
5.6 Optical Properties
5.6.1 Refractive Index
5.7.2 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
6.4.1 Sanderson Electronegativity
6.5.1 Allred Rochow Electronegativity
6.7.1 Mulliken-Jaffe Electronegativity
6.8.1 Allen Electronegativity
6.11 Electropositivity
6.11.1 Pauling Electropositivity
7.2 Ionization Energies
7.2.1 1st Energy Level
955.20 kJ/mol418.80 kJ/mol
375.7
26130
7.2.3 2nd Energy Level
1,891.10 kJ/mol3,052.00 kJ/mol
710.2162
28750
7.3.1 3rd Energy Level
3,029.60 kJ/mol4,420.00 kJ/mol
1600
34230
7.4.1 4th Energy Level
3,955.90 kJ/mol5,877.00 kJ/mol
2780
37066
7.5.3 5th Energy Level
5,113.70 kJ/mol7,975.00 kJ/mol
4305.2
97510
7.6.2 6th Energy Level
NA9,590.00 kJ/mol
5715.8
105800
7.6.3 7th Energy level
NA11,343.00 kJ/mol
7226.8
114300
7.6.5 8th Energy Level
NA14,944.00 kJ/mol
8857.4
125300
7.6.7 9th Energy Level
NA16,963.70 kJ/mol
14110
134700
7.7.1 10th Energy Level
NA48,610.00 kJ/mol
17100
144300
7.7.2 11th Energy Level
NA54,490.00 kJ/mol
19900
169988
8.1.4 12th Energy Level
NA60,730.00 kJ/mol
22219
189368
8.1.6 13th Energy Level
NA68,950.00 kJ/mol
26930
76015
8.2.3 14th Energy Level
NA75,900.00 kJ/mol
29196
86450
8.2.5 15th Energy Level
NA83,080.00 kJ/mol
41987
97510
8.2.6 16th Energy Level
NA93,400.00 kJ/mol
47206
109480
8.2.8 17th Energy Level
NA99,710.00 kJ/mol
52737
122200
9.1.1 18th Energy Level
9.2.1 19th Energy Level
9.3.1 20th Energy Level
9.3.2 21st Energy Level
9.4.1 22nd Energy Level
9.5.1 23rd Energy Level
9.5.2 24th Energy Level
9.6.2 25th Energy Level
9.6.3 26th Energy Level
9.6.5 27th Energy Level
9.6.7 28th Energy Level
9.6.8 29th Energy Level
9.7.1 30th Energy Level
9.8 Electrochemical Equivalent
NA1.46 g/amp-hr
0.16812
8.3209
9.9 Electron Work Function
9.10 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Chemical Stability, Flammability, Ionization, Solubility
10 Atomic
10.1 Atomic Number
10.2 Electron Configuration
[Rn] 5f14 6d8 7s2
[Ar] 4s1
10.3 Crystal Structure
Body Centered Cubic (BCC)
Body Centered Cubic (BCC)
10.3.1 Crystal Lattice
10.4 Atom
10.4.1 Number of Protons
10.4.2 Number of Neutrons
10.4.3 Number of Electrons
10.5 Radius of an Atom
10.5.1 Atomic Radius
132.00 pm227.00 pm
112
265
10.5.2 Covalent Radius
128.00 pm203.00 pm
96
260
10.5.3 Van der Waals Radius
10.6 Atomic Weight
281.00 amu39.10 amu
6.94
294
10.7 Atomic Volume
NA45.46 cm3/mol
1.39
71.07
10.8 Adjacent Atomic Numbers
10.8.1 Previous Element
10.8.2 Next Element
10.9 Valence Electron Potential
10.10 Lattice Constant
NA532.80 pm
228.58
891.25
10.11 Lattice Angles
10.12 Lattice C/A Ratio
11 Mechanical
11.1 Density
11.1.1 Density At Room Temperature
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
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
NA0.14 106/cm Ω
0.00666
0.63
12.2.4 Electron Affinity
13 Thermal
13.1 Specific Heat
13.2 Molar Heat Capacity
NA29.60 J/mol·K
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
NA77.50 kJ/mol
7.32
799.1
13.6.2 Enthalpy of Fusion
13.6.3 Enthalpy of Atomization
13.7 Standard Molar Entropy
NA64.70 J/mol.K
9.5
198.1