Consider the redox reaction.
Ca(s) + Br2(g)→CaBr2(s)
Draw the Lewis structure for each reactant and product and determine which reactant was oxidized and which one was reduced.
Here, we are going to write Lewis structure of reactant and product as well as find out the oxidized and reduced form of the reactant.
Oxidation reaction is defined as the increase in oxidation state and reduction is the decrease in oxidation state.
Lewis structures of reactants
Ca: Valence electron of Ca =2
The Lewis structure of Ca is as follows.
Valence electron of Br = 7
Total electrons in Br2 = 7+ 7 =14 e
The Lewis structure of Br2 is