Answer:
Step-by-step explanation:
The statement you've provided is not entirely accurate. The ability of one element to replace another in a compound depends on the reactivity and the specific chemical reactions involved. While the general trend of reactivity can be related to an element's position on the periodic table, it's not the sole determining factor.
Iodine (I) is indeed lower on the periodic table compared to chlorine (Cl). However, the ability of iodine to replace chlorine in a compound like FeCl2 depends on the specific chemical reaction conditions and the reactivity of the elements involved.
In certain chemical reactions, iodine could replace chlorine if the reaction conditions are suitable for such a substitution. For example, if a more reactive halogen like bromine or iodine is introduced to a solution of FeCl2, a displacement reaction might occur, where the more reactive halogen replaces the less reactive chlorine.
In summary, while the periodic table trends provide some insights into reactivity, actual chemical reactions can be influenced by a variety of factors, including reaction conditions, the nature of the compounds involved, and the specific reaction mechanisms.