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Group 1

51 bytes added, 16:11, 5 December 2018

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|[[File:Group1ElectronShells.png|center|100px]]

|[[File:Group1ElectronShielding.png|center|100px]]| style="height:20px; width:~~500px~~400px; text-align:left;" |In a [[Chemical Reaction|chemical reaction]] the [[electron]] in the [[Outer Shell|outer shell]] is lost.

The [[reactivity]] increases as you go down the group because:

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