A negative ion is commonly referred to as an “anion.” An anion is an atom or molecule that has gained one or more electrons, resulting in a negative electrical charge.
To explain further, atoms typically have an equal number of protons (positively charged) and electrons (negatively charged), making them electrically neutral. However, when an atom loses an electron, it becomes a positively charged ion or cation. Conversely, when it gains an electron, it transforms into an anion, carrying a negative charge. This process of gaining electrons can occur in various scenarios, such as chemical reactions or during the interaction with certain environmental factors like air pollutants or natural elements.
Negative ions are often associated with certain benefits, such as improving air quality and promoting feelings of well-being, which is why they are commonly found in natural settings like beaches, forests, and waterfalls.