Avogadro & The Mole Today, October, is Mole Day – Mole in chemistry, a quantity that essentially allows us to ‘count’ atoms and molecules in a more convenient way. This is a fundamental concept, and one that all chemists utilise.
Names of Polyatomic Ions. Fairly compact but somewhat useful table. Why the Latin roots for iron (ferrum), for example, are listed but not provided in their useful form (ferrous and ferric, stannous and stannic) is a mystery.