Sodium and Potassium are classified as __________.

Sodium and potassium are classified as cations because they are positively charged ions. The term "cation" specifically refers to ions that have lost one or more electrons, resulting in a net positive charge. Sodium (Na⁺) loses one electron to achieve this charge, and potassium (K⁺) also loses one electron. This characteristic allows them to play critical roles in various physiological processes, including nerve transmission, muscle contraction, and maintaining fluid balance within the body. Their positive charge allows them to interact with negatively charged particles, which is essential for cellular processes and overall homeostasis.