Naming Ionic Compounds and Transition Metals

Why are Roman numerals included in the names of ionic compounds containing transition metals?

• To indicate the number of atoms of the transition metal in the compound.

• To specify the charge of the transition metal ion.

• To denote the group number of the transition metal on the periodic table.

• To show the atomic number of the transition metal.

What is a key difference in ion formation between transition metals and main group metals like sodium (Na) or magnesium (Mg)?

• Transition metals always form ions with a +1 charge, while main group metals form ions with a +2 charge.

• Transition metals can form multiple ions with different charges, whereas main group metals typically form ions with a single, fixed charge.

• Main group metals can form multiple ions with different charges, whereas transition metals typically form ions with a single, fixed charge.

• Transition metals only form negative ions, while main group metals only form positive ions.

What is the correct name for an Fe²⁺ ion?

• Iron (I)

• Iron (II)

• Iron (III)

• Iron (IV)

What is the charge of the iron ion in the compound FeCl₃?

• Fe¹⁺

• Fe²⁺

• Fe³⁺

• Fe⁴⁺

What is the correct name for the compound FeCl3?

• Iron Chloride

• Iron (II) Chloride

• Iron (III) Chloride

• Iron Trichloride

When naming an ionic compound, Roman numerals are used to indicate the charge of the metal ion if the metal:

• Is a nonmetal.

• Forms only one type of ion.

• Is a transition metal that can form multiple ions.

• Is found in Group 1 or 2 of the periodic table.

Which of the following compounds does NOT require a Roman numeral in its name?

• Copper (I) Bromide

• Vanadium (IV) Oxide

• Potassium Iodide

• Iron (III) Chloride

Which pair of transition metals does NOT require Roman numerals when naming their ionic compounds, due to their consistent ion charges?

• Copper and Iron

• Silver and Zinc

• Vanadium and Lead

• Tin and Mercury