What term describes ions in a solution that carry a negative charge?

The correct term for ions in a solution that carry a negative charge is "anions." Anions are formed when an atom gains one or more electrons, resulting in a net negative charge due to the excess of electrons compared to protons. This characteristic of anions makes them crucial in various chemical reactions and processes, including those relevant in funeral service education, such as the preparation of embalming fluids where different ions might play a role in fluid formulation and chemical balance.

In contrast, cations are positively charged ions formed when an atom loses electrons. Electrons themselves are subatomic particles that carry a negative charge but are not ions, as they do not exist independently in solution. Molecules are neutral entities formed when atoms bond together and do not classify in terms of positive or negative charge like ions do. Recognizing these definitions is fundamental for understanding the role of different types of ions in chemical interactions.