What is the name of the binary compound formed from potassium and iodine?
Austin, Kay, Wally -- why do you keep changing your name for each of your physical science posts?
Look up potassium iodide
To find the name of the binary compound formed from potassium and iodine, we need to know the ionic charges of the atoms involved. In this case, potassium (K) is a Group 1 element, which means it has a charge of +1. Iodine (I) is a Group 17 element, which means it has a charge of -1.
To form a stable compound, these charges need to balance each other out. This means that one potassium ion (K+) can combine with one iodide ion (I-) to form a neutral compound. Therefore, the formula of this binary compound is KI.
To determine the name of the compound, we use a naming system called IUPAC (International Union of Pure and Applied Chemistry) nomenclature. In this system, the name of an ionic compound consists of the cation (positive ion) followed by the anion (negative ion).
In this case, the cation is potassium (K+) and the anion is iodide (I-). To name the compound, we combine the names of the individual ions. Therefore, the name of the binary compound formed from potassium and iodine is potassium iodide.