Which element is represented by the symbol "K"?

The symbol "K" represents potassium, which is derived from the Latin word "kalium." Potassium is an alkali metal found in Group 1 of the periodic table and is known for its high reactivity, especially with water. In biological systems, potassium plays a crucial role, particularly in nerve function and muscle contraction, making it an essential nutrient for living organisms. Its position in the periodic table and its properties, such as being soft and silvery-white in color, further confirm its identity as potassium. Understanding the origin of chemical symbols can be particularly helpful in memorizing and distinguishing various elements in chemistry.