Question

Helppp. Calcium reacts with bromine to form Calcium bromide

Ca - - - - > Ca+2

Br2 - - - - > 2br

A. Complete the equation by adding electrons

Answer 1

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Actually Welcome to the Concept of the Chemical Bonding.

Since we know that, calcium shares 2 electrons and Bromide being a halogen accepts 1 electron at a time,

So 2 bromides combine together to form a bond with Calcium, so we get as,

Ca2+ + 2Br -----------------------> CaBr2

CaBr2 is the compound formed.