 | Potassium | Atomic Number: 19 |
- Overview
Property Value Units 39.0983
0.856
- Thermal Properties
Thermal Properties
Property Value Units 64°C
774°C
16 MPa
2223°C
2.33 kJ/mol
76.9 kJ/mol
757 J/kg·K
100 W/m·K
- Electon Configuration
[Ar] 4s1
K L M N O P Q 2 8 8 1 0 0 0 Level S Orbital P Orbital D Orbital F Orbital Level 1 Level 2 - History
Year Discovered
1807
- Isotopes
Isotope Common Name Symbol Mass Status Abundance Half-life Decay mode Decay Energy Nuclear Spin Magnetic Moment 19
K
39
Potassium K 39 Stable 93.2581 - - - - - 19
K
40
Potassium K 40 Stable 0.0117 - - - - - 19
K
41
Potassium K 41 Stable 6.7302 - - - - - Isotopic mass data for stable isotopes is from:
G. Audi, A.H. Wapstra in Nuclear Physics A, 1993, 565, 1-65
and
G. Audi, A.H.Wapstra in Nuclear Physics A, 1995, 595 409-480.Natural abundance data is from:
K.J.R. Rosman, P.D.P. Taylor in Pure Appplied Chemistry, 1999, 71, 1593-1607.- Occurance
In the Universe 0.0003% In the Sun 0.0004% In Meteorites 0.07% In the Earth's Crust 1.5% In Seawater 0.042% In the Human Body 0.2% - Models
Pictures, videos and 3D models of the element
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