Roman Numerals

• transition metals can have more than one valency. Roman numerals are used in the names of compounds to indicate which valency is being used
• one = 𝖨
• two = Ⅱ
• three = Ⅲ
• four = Ⅳ
• five = Ⅴ
• six = Ⅵ
• seven = Ⅶ
• nine = Ⅸ
• eight = Ⅷ
• ten = Ⅹ