Energy is _ when oppositely charged ions are brought close to each other.

Explanation

The correct answer is Option A: Released. When oppositely charged ions approach each other, they exert attractive forces, leading to the formation of an ionic bond. This process is exothermic, meaning it releases energy into the surroundings. The concept of lattice energy is crucial here; it quantifies the energy released when gaseous ions combine to form a solid ionic lattice, such as NaCl.In contrast, Option B: Absorbed is incorrect because the formation of ionic bonds releases energy, not absorbs it. Option C: Remain same and Option D: Constant are both incorrect as they imply that there is no energy change when oppositely charged ions come together. The formation of ionic bonds is a dynamic process that involves significant energy release.