Write the Lewis symbol for each atom or ion. d. Cl^-

Lewis symbols, also known as Lewis dot diagrams, represent the valence electrons of an atom or ion. Each dot corresponds to a valence electron, and they are placed around the chemical symbol of the element. This visual representation helps in understanding bonding and the reactivity of elements.

Chlorine (Cl) is a halogen with seven valence electrons in its outer shell. When it gains an electron to form the chloride ion (Cl⁻), it achieves a stable octet configuration, resulting in a total of eight valence electrons. This change is crucial for understanding its chemical behavior and bonding.

The ionic charge of an atom or ion is indicated by a superscript next to its chemical symbol. For example, Cl⁻ indicates that the chlorine atom has gained one electron, resulting in a negative charge. This notation is essential for accurately representing the electronic structure and stability of ions.