1 Periodic Table
1.1 Symbol
1.2 Group Number
1.3 Period Number
1.4 Block
1.5 Element Family
1.6 CAS Number
74400977440111
7429905
54386242
1.7 Space Group Name
1.8 Space Group Number
3 Facts
3.1 Interesting Facts
- In the list of most abundant element Potassium is ranked 7th.
- Potassium can easily be sliced (chopped) down using knife.
- Mendelevium metal is synthetically produced metal.
- Mendelevium metal has been produced in only trace amount.
3.2 Sources
Found in Minerals, Mining
Bombarding Einsteinium with Helium Ions
3.3 History
3.3.1 Who Discovered
Humphry Davy
Lawrence Berkeley National Laboratory
3.3.2 Discovery
3.4 Abundance
3.4.1 Abundance In Universe
3.4.4 Abundance In Sun
~0.0004 %~-9999 %
1E-08
0.1
3.4.7 Abundance In Meteorites
3.5.4 Abundance In Earth's Crust
3.5.7 Abundance In Oceans
3.5.10 Abundance In Humans
4 Uses
4.1 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 Mendelevium metal are limited to research purpose only.
4.1.1 Industrial Uses
Ammunition Industry, Chemical Industry
NA
4.1.2 Medical Uses
Pharmaceutical Industry
NA
4.1.3 Other Uses
4.2 Biological Properties
4.2.1 Toxicity
4.2.2 Present in Human Body
4.2.3 In Blood
1,620.00 Blood/mg dm-30.00 Blood/mg dm-3
0
1970
5.1.2 In Bone
2,100.00 p.p.m.0.00 p.p.m.
0
170000
6 Physical
6.1 Melting Point
63.65 °C827.00 °C
27
3410
6.3 Boiling Point
6.5 Appearance
6.5.1 Physical State
6.5.2 Color
6.5.3 Luster
6.6 Hardness
6.6.1 Mohs Hardness
6.7.2 Brinell Hardness
6.8.2 Vickers Hardness
6.9 Speed of Sound
6.11 Optical Properties
6.11.1 Refractive Index
6.12.1 Reflectivity
6.13 Allotropes
6.13.1 α Allotropes
Not Available
Not Available
6.13.2 β Allotropes
Not Available
Not Available
6.13.3 γ Allotropes
Not Available
Not Available
7 Chemical
7.1 Chemical Formula
7.2 Isotopes
7.2.1 Known Isotopes
8.2 Electronegativity
8.2.1 Pauling Electronegativity
8.5.2 Sanderson Electronegativity
8.5.3 Allred Rochow Electronegativity
8.5.5 Mulliken-Jaffe Electronegativity
8.5.7 Allen Electronegativity
8.7 Electropositivity
8.7.1 Pauling Electropositivity
8.8 Ionization Energies
8.8.1 1st Energy Level
418.80 kJ/mol635.00 kJ/mol
375.7
26130
8.8.3 2nd Energy Level
3,052.00 kJ/mol1,235.00 kJ/mol
710.2162
28750
8.8.5 3rd Energy Level
4,420.00 kJ/mol2,470.00 kJ/mol
1600
34230
8.9.1 4th Energy Level
5,877.00 kJ/mol3,840.00 kJ/mol
2780
37066
8.10.1 5th Energy Level
7,975.00 kJ/molNA
4305.2
97510
8.10.2 6th Energy Level
9,590.00 kJ/molNA
5715.8
105800
8.12.1 7th Energy level
11,343.00 kJ/molNA
7226.8
114300
8.13.1 8th Energy Level
14,944.00 kJ/molNA
8857.4
125300
8.15.1 9th Energy Level
16,963.70 kJ/molNA
14110
134700
9.1.2 10th Energy Level
48,610.00 kJ/molNA
17100
144300
9.1.3 11th Energy Level
54,490.00 kJ/molNA
19900
169988
9.1.5 12th Energy Level
60,730.00 kJ/molNA
22219
189368
9.1.6 13th Energy Level
68,950.00 kJ/molNA
26930
76015
9.2.1 14th Energy Level
75,900.00 kJ/molNA
29196
86450
9.4.2 15th Energy Level
83,080.00 kJ/molNA
41987
97510
9.4.4 16th Energy Level
93,400.00 kJ/molNA
47206
109480
9.5.2 17th Energy Level
99,710.00 kJ/molNA
52737
122200
9.5.4 18th Energy Level
9.5.5 19th Energy Level
9.5.7 20th Energy Level
9.6.1 21st Energy Level
9.6.2 22nd Energy Level
9.7.1 23rd Energy Level
10.1.2 24th Energy Level
10.1.5 25th Energy Level
10.1.6 26th Energy Level
10.1.8 27th Energy Level
10.2.3 28th Energy Level
10.2.4 29th Energy Level
10.2.6 30th Energy Level
10.3 Electrochemical Equivalent
1.46 g/amp-hr3.21 g/amp-hr
0.16812
8.3209
10.4 Electron Work Function
11.2 Other Chemical Properties
Chemical Stability, Flammability, Ionization, Solubility
Ionization, Radioactive Isotopes, Radioactivity
12 Atomic
12.1 Atomic Number
12.3 Electron Configuration
12.4 Crystal Structure
Body Centered Cubic (BCC)
Not Known
12.4.1 Crystal Lattice
12.5 Atom
12.5.1 Number of Protons
12.6.1 Number of Neutrons
12.7.1 Number of Electrons
12.9 Radius of an Atom
12.9.1 Atomic Radius
12.10.2 Covalent Radius
12.10.4 Van der Waals Radius
275.00 pm246.00 pm
139
348
12.11 Atomic Weight
39.10 amu258.00 amu
6.94
294
12.13 Atomic Volume
45.46 cm3/molNA
1.39
71.07
12.14 Adjacent Atomic Numbers
12.14.1 Previous Element
12.14.2 Next Element
12.15 Valence Electron Potential
12.16 Lattice Constant
532.80 pmNA
228.58
891.25
12.17 Lattice Angles
12.18 Lattice C/A Ratio
13 Mechanical
13.1 Density
13.1.1 Density At Room Temperature
13.1.2 Density When Liquid (at m.p.)
13.2 Tensile Strength
13.3 Viscosity
13.4 Vapor Pressure
13.4.1 Vapor Pressure at 1000 K
13.4.2 Vapor Pressure at 2000 K
13.5 Elasticity properties
13.5.1 Shear Modulus
13.5.2 Bulk Modulus
13.5.3 Young's Modulus
13.6 Poisson Ratio
13.7 Other Mechanical Properties
14 Magnetic
14.1 Magnetic Characteristics
14.1.1 Specific Gravity
14.1.2 Magnetic Ordering
14.1.3 Permeability
14.1.4 Susceptibility
14.2 Electrical Properties
14.2.1 Electrical Property
14.2.2 Resistivity
14.2.3 Electrical Conductivity
0.14 106/cm ΩNA
0.00666
0.63
14.2.4 Electron Affinity
15 Thermal
15.1 Specific Heat
15.2 Molar Heat Capacity
29.60 J/mol·KNA
16.443
62.7
15.3 Thermal Conductivity
15.4 Critical Temperature
15.5 Thermal Expansion
15.6 Enthalpy
15.6.1 Enthalpy of Vaporization
77.50 kJ/molNA
7.32
799.1
15.6.2 Enthalpy of Fusion
15.6.3 Enthalpy of Atomization
15.7 Standard Molar Entropy
64.70 J/mol.KNA
9.5
198.1