kationo
Kationo is a term that refers to a positively charged ion. Ions are atoms or molecules that have an electrical charge due to the loss or gain of electrons. When an atom or molecule loses one or more electrons, it results in an excess of positive charges, thus becoming a cation. Cations are typically formed from metals, which tend to readily lose electrons. For example, a sodium atom (Na) losing an electron becomes a sodium cation (Na+). Similarly, a magnesium atom (Mg) losing two electrons becomes a magnesium cation (Mg2+). In aqueous solutions, cations are attracted to the negative electrode, known as the cathode, hence the name "cation." They play crucial roles in various chemical and biological processes, including the formation of ionic compounds, nerve impulse transmission, and muscle contraction. Common examples of cations found in nature and industry include sodium (Na+), potassium (K+), calcium (Ca2+), and magnesium (Mg2+).