Question
Show the electronic transfer in the formation of $MgCl _2$, from its elements.
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Answer
$Mg \gg>$ Electronic configuration $=2,8,2$ Stable form $\gg>2,8$ hence valency $=+2 Cl >>$ Electronic configuration = 2, 8,7 Stable form $>>2,8,8$ hence valency $=-1$ Formation of $MgCl _2$ Formation of magnesium ion by donating an electron, $Mg (2,8) \rightarrow Mg ^{+2}+2 e ^{-}$Formation of chlorine ion by accepting an electron, $Cl (2,8,7)+ e ^{-} \rightarrow Cl ^{-}$When 2 free chlorine atoms accept the electrons given by single magnesium ion the compound $MgCl _2$ is formed..
The 2 electrons lost by a magnesium atom are gaines by chlorine atoms to produce a magnesium ion and 2 chloride ions.
The 2 electrons lost by a magnesium atom are gaines by chlorine atoms to produce a magnesium ion and 2 chloride ions.
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