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The Roman numeral in the parentheses is the valence or oxidation of the metal that it follows. Transition elements have more than one oxidation number
For the transition metals, the roman numeral designates the valence number of the metal in the ionic bond. For example CuSO4 is Copper (II) Sulfate, because the copper has a valence of +2 in this bond.
The Roman numeral tells you the number of electrons a polyvalent cation (usually a transition metal) gives up to participate in the ionic bond. Example: "Iron (III) oxide" means the iron is giving up 3 electrons to form the compound Fe2O3.
Roman numeral is used to mark valence. If an atom, or metal atom has only one valence, you can spare writing it
A roman numeral in parentheses follows the name of the metal... apex
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Roman Numeral
The Roman numeral in the parentheses is the valence or oxidation of the metal that it follows. Transition elements have more than one oxidation number
Roman Numeral
roman numeral
For the transition metals, the roman numeral designates the valence number of the metal in the ionic bond. For example CuSO4 is Copper (II) Sulfate, because the copper has a valence of +2 in this bond.
Because transition metals can assume more than one charge, the transition metal ion is named by using a Roman numeral
A roman numeral in parentheses follows the name of the metal... apex
It is only needed after transition metals, so it should say how many valence electrons are in the transition metal. Ex: If iron has 3 valence electrons and it is combined with oxygen, it would be written as Iron (III) oxide. I hope It helped!
The Roman numeral tells you the number of electrons a polyvalent cation (usually a transition metal) gives up to participate in the ionic bond. Example: "Iron (III) oxide" means the iron is giving up 3 electrons to form the compound Fe2O3.
A transition metal.