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{{Element | name=Potassium | symbol=K | anumber=19 | amass=39.10 amu | state=solid | class=Alkali metal | cstructure=Body-Centered Cubic | color=Silver | date=1807 | discname=[[Davy, Sir Humphrey ]] | origname=From the Latin ''Kalium'' | uses=important biological role, and used in numerous industrial processes | obtained=sylvite, sylvinite, carnallite }}

{{Element | name=Potassium | symbol=K | anumber=19 | amass=39.10 amu | state=solid | class=Alkali metal | cstructure=Body-Centered Cubic | color=Silver | date=1807 | discname=[[Davy, Sir Humphrey]] | origname=From the Latin ''Kalium'' | uses=important biological role, and used in numerous industrial processes | obtained=sylvite, sylvinite, carnallite }}

'''Potassium''' is an [[element]]<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref> in the [[alkali metal]]s class of the [[periodic table]].  It is so chemically active that it is never found free (in elemental form) in nature.  In its elemental form, it reacts with water, forming potassium hydroxide and [[hydrogen]] gas, so violently that the hydrogen usually catches fire. It reacts with the [[halogen]]s to make halides like [[potassium chloride]].

'''Potassium''' is an [[element]]<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref> in the [[alkali metal]]s class of the [[periodic table]].  It is so chemically active that it is never found free (in elemental form) in nature.  In its elemental form, it reacts with water, forming potassium hydroxide and [[hydrogen]] gas, so violently that the hydrogen usually catches fire. It reacts with the [[halogen]]s to make halides like [[potassium chloride]].

The radioactive decay of potassium provides a method of [[radiometric dating]] called [[potassium-argon dating]] that is used to calculate the ages of volcanic rocks.

The radioactive decay of potassium provides a method of [[radiometric dating]] called [[potassium-argon dating]] that is used to calculate the ages of volcanic rocks.

==See Also==

==See also==

* [[List of gardening topics]]

* [[List of gardening topics]]

* [[Permaculture]] - Permanent agriculture

* [[Permaculture]] - Permanent agriculture

[[Category:Permaculture]]

[[Category:Permaculture]]

[[Category:Plants]]

[[Category:Plants]]

[[Category : Soil]]

[[Category:Soil]]

{{Template:Periodic table}}

{{Periodic table}}