Oxidation States is a free educational app developed by dicAPPS for Android 9.0 and above. This app is a useful tool for students studying inorganic chemistry and nomenclature. It provides a list of the main oxidation numbers of the elements, ordered by atomic number. Users can search by symbol, name, or value to find the desired information.

The app also includes notes on elements with special values such as Manganese or Nitrogen. Additionally, users can download a PDF table containing the main oxidation numbers of the most commonly used elements in inorganic chemistry. Oxidation States is a great resource for students wanting to quickly and easily access information on oxidation numbers for inorganic nomenclature.