[Thresh]

MgI₂(aq) + Cl₂(aq) ---> MgCl₂(aq) +  I₂(aq)

Based on periodic properties will this reaction take place?
  I said no due to Cl being a better oxidizing agent than I, or so I think? Am I on the right track?

[Guitarmaniac86]

I think your wrong purely based on the following observation:

When chlorine gas is passed through a solution of Potassium Bromide, the solution goes a reddish brown because the Bromine is liberated. Now think about your reaction. What would the chlorine actually do? The chlorine has a higher electronegativity than Iodine. What does this mean? Therefore, what happens to the reaction of

MgI₂ with chlorine gas?

[Thresh]

So yes the reaction would take place. The Cl would liberate the Iodine from the Mg due to it having a higher E.N. than Iodine. Right?

Thanks for your input.

[Guitarmaniac86]

So yes the reaction would take place. The Cl would liberate the Iodine from the Mg due to it having a higher E.N. than Iodine. Right?

Thanks for your input.

Yep. Thats right.