The electron affinity values for the halogens show the following trend:

• A.) F < Cl > Br > I
• B.) F < Cl < Br < I
• C.) F > Cl > Br > I
• D.) F < Cl > Br < I

The electron affinity values for the halogens exhibit a specific trend that can be understood by examining their positions in the periodic table. The correct order of electron affinity for the halogens is:

Understanding Electron Affinity

Electron affinity refers to the energy change that occurs when an electron is added to a neutral atom. Generally, halogens have high electron affinities because they are one electron short of achieving a stable noble gas configuration.

Trends Among Halogens

• Fluorine (F): Has the highest electron affinity due to its small atomic size and high electronegativity.
• Chlorine (Cl): Also has a high electron affinity, but slightly lower than fluorine.
• Bromine (Br): Has a lower electron affinity than chlorine.
• Iodine (I): Exhibits the lowest electron affinity among the halogens.

Correct Answer

Based on this trend, the correct answer is:

C.) F > Cl > Br > I