Chromium (III) Chloride
Work Step by Step
We know that there are 3 Chlorine atoms, which each have a charge of 1- as they are halogens. This means that chromium has a charge of 3+. However, chromium can have multiple different charges, so we indicate its charge in the name for clarification purposes. Thus, we have: Chromium (III) Chloride Note, roman numerals are used for elements that have numerous different possible charges on their ion.