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

Key Concepts

Lewis Symbols

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 Atom and Ion

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.

Ionic Charge Representation

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.