Question
Show the electronic transfer in the formation of MgCl2, from its elements.
✓
Answer
Mg >> Electronic configuration = 2, 8, 2 Stable form >> 2, 8 hence valency = +2 Cl >> Electronic configuration = 2, 8, 7 Stable form >> 2, 8, 8 hence valency = -1 Formation of MgCl2 Formation of magnesium ion by donating an electron, Mg(2, 8) → Mg+2 + 2e- Formation of chlorine ion by accepting an electron, Cl(2, 8, 7) + e- → Cl- When 2 free chlorine atoms accept the electrons given by single magnesium ion the compound MgCl2 is formed.
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