Summary of Ionic Compounds

Multiple Choice

How do the following two elements bond together?
Al³⁺  O^2-         

• AlO
• Al₂O₃
• Al₃O₆
• Al₃O₂

Multiple Choice

What is the correct formula for the compound, lithium oxide?

• LiO
• Li₂O
• LiO₂
• Li₂O₂

Transition Metals

•Transition metals “transition” because they can form many different ions

•Iron as a transition metal can be Fe²⁺ or Fe³⁺

•Because you can’t determine the oxidation number from the periodic table, a Roman Numeral is used to show it

copper (I) ®

copper (II) ® Cu²⁺

​Cu¹⁺

Exception #2: Transition Metals
How to Name Ionic Compounds (formula -> name)

1.Write the name of the first element (the metal)

  Exception #2: if a transition metal, include a   Roman numeral to indicate the charge of the  metal

2.Write the name of the second element (the nonmetal) with an –ide ending

    Example:

  CuCl Copper (I) Chloride

 

Multiple Choice

Which is the Roman Numeral for +3?

• I
• II
• III
• +III

Multiple Choice

The name for CrN:

• Chromium nitride
• Chromium (I) nitride
• Chromium (III) nitride
• Chromium nitride (III)

How to determine the Formula for an Ionic Compound w/ transition metals (name-> formula)

1.Write down the ions of each element with charge (The transition metals charge will be given by the use of Roman Numerals.)
Iron (II) Oxide

2. criss cross applesauce

3. Write down the formula using subscripts

 Fe2O2

4. Reduce/simplify (if needed)

FeO

Multiple Choice

The name of Cu₃N₂ is

• copper (III) nitride
• copper (II) nitride
• copper nitride
• tricopper dinitride

SUMMARY: Steps for Naming Ionic Compounds (formula-> name)

Fill in the Blank

Name the following compound: MgCl2

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Name the following compound: (NH₄)₃PO₄

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Name the following compound: Ni(OH)₂

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Name to Formula: Sodium chloride

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Name to formula: Aluminum hydroxide

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Name to formula: Iron (III) oxide

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What can you infer from the periodic table?

:

)