Naming Ionic Compounds

Which of the following is FALSE about an ionic bond?

• Forms between a metal and nonmetal

• Electrons are transferred from one atom to another

• Results in the formation of cations and anions

• Creates instability between atoms.

Which of the following is NOT a rule when naming ionic compounds?

• The metal keeps its name.

• The ending of the nonmetal changes to -ide.

• The ending of the metal changes to -ide.

• A roman numeral is added only if the metal forms more than one cation (positive charge).

Using your periodic table... which metal forms more than one cation (positive charge)?

• Lithium, Li

• Copper, Cu

• Aluminum, Al

• Sodium, Na

Using your periodic table, which metal has only 1 possible cation (positive charge)?

• Zinc, Zn

• Iron, Fe

• Mercury, Hg

• Lead, Pb

If the metal forms more than 1 cation, then it will require a roman numeral in its name. Which metal will require a roman numeral in its name?

• Potassium, K

• Nickel, Ni

• Strontium, Sr

• Zinc, Zn

Iron, Fe, can form 2 possible cations: +2 or +3.

If a chemical formula uses the +3 charge, which roman numeral should be added to the name?

ex: FeCl₃ uses Fe⁺³

• (I)

• (II)

• (III)

• (IV)

Copper, Cu, can form 2 possible cations: +1 or +2.

If a chemical formula uses the +2 charge, which roman numeral should be added to the name?

ex: CuCl₂ uses Cu⁺²

• (I)

• (II)

• (III)

• (IV)

Does FeCl₂ need a roman numeral?

What is its name?

• No.

  Iron chloride.

• No.

  Iron chlorine.

• Yes.

  Iron (II) chloride

• Yes.

  Iron (III) chloride

Does CuBr need a roman numeral?

What is its name?

• No.

  Copper bromide

• No.

  Copper bromine

• Yes.

  Copper (I) bromide

• Yes.

  Copper (II) bromide

Does LiF need a roman numeral?

What is its name?

• No.

  Lithium fluoride

• No.

  Lithium fluorine

• Yes.

  Lithium (I) fluoride

• Yes.

  Lithium (II) fluoride