Given that the atomic radius of element X is 0.197 nm, what would you expect the radius of cations X and X2+ to be?

yes they ca   is ur ansswerrr

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.

i believe the answer is 5,000