Here's a breakdown:

* Halogen: A group of non-metallic elements found in Group 17 of the periodic table. They include fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At).

* Anion: A negatively charged ion. Halogens gain an electron to achieve a stable electron configuration, forming a negative charge.

Examples of halides:

* Chloride (Cl⁻)

* Bromide (Br⁻)

* Iodide (I⁻)

* Fluoride (F⁻)

These halides are commonly found in various compounds and play important roles in chemistry and biology.