Difference between revisions of "Potassium"

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This element has two stable isotopes: 39 and 41.   
 
This element has two stable isotopes: 39 and 41.   
 
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== Related Articles ==
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* [[KREEP]]
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==External Links==
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*[http://lunar.arc.nasa.gov/results/gamres.htm Lunar Prospector: Gamma Ray Spectrometer Results]
  
  
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[[Category:Solids]]
 
[[Category:Solids]]
[[Category:Alkali metals]]
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[[Category:Alkali Metals]]
 
[[Category:Critical and Essential Elements]]
 
[[Category:Critical and Essential Elements]]
  
 
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Latest revision as of 18:20, 15 June 2015

Potassium
K
In situ availability: trace
Necessity: essential
Atomic number: 19
Atomic mass: 39.0983
group: 1
period: 4
normal phase: Solid
series: Alkali metals
density: 0.89 g/cm3
melting point: 336.53K,
63.38°C,
146.08°F
boiling point: 1032K,
759°C,
1398°F
N/ANaMg
Ar ← K → Ca
N/ARbSr
Atomic radius (pm): 220
Bohr radius (pm): 243
Covalent radius (pm): 196
Van der Waals radius (pm): 275
ionic radius (pm): (+1) 151
1st ion potential (eV): 4.34
Electron Configuration
1s2
2s2 2p6
3s2 3p6
4s1
Electrons Per Shell
2, 8, 8, 1
Electronegativity: 0.82
Electron Affinity: 0.5
Oxidation states: 1
Magnetism: ?
Crystal structure: Body centered cubic

Potassium is a Alkali metal in group 1. It has a Body centered cubic crystalline structure. This element has two stable isotopes: 39 and 41.


Related Articles


External Links



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