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Ionic bonding - naming

Ionic bonding - naming. Chem -To-Go Lesson 14 Unit 4. Need a periodic table and an ion sheet. How to name ionic compounds. Write the name of the metal element, which is the positive ion.

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Ionic bonding - naming

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  1. Ionic bonding - naming Chem-To-Go Lesson 14 Unit 4 Need a periodic table and an ion sheet

  2. How to name ionic compounds • Write the name of the metal element, which is the positive ion. • If the metal is a transition metal (except for Ag or Zn), draw parentheses for the Roman numeral. We’ll fill it in later. • Write the name of the negative ion. • If it is a monatomic ion (a plain ol’ element), then the ending will be –ide. • If it is a polyatomic ion, then the ending will be probably be –ite or –ate. • Fill in the Roman numeral. You’ll need to determine the ORIGINAL charge of cation. It’s that positive charge that goes in the parentheses. Al2(SO4)3

  3. Example 2 • Write the name of the metal element, which is the positive ion. • If the metal is a transition metal (except for Ag or Zn), draw parentheses for the Roman numeral. We’ll fill it in later. • Write the name of the negative ion. • If it is a monatomic ion (a plain ol’ element), then the ending will be –ide. • If it is a polyatomic ion, then the ending will be probably be –ite or –ate. • Fill in the Roman numeral. You’ll need to determine the ORIGINAL charge of cation. It’s that positive charge that goes in the parentheses. CaCl2 Tip: Be careful not to mistake the Cl2 portion for ClO2. Most polyatomic ions can be recognized by looking for O.

  4. Example 3 • Write the name of the metal element, which is the positive ion. • If the metal is a transition metal (except for Ag or Zn), draw parentheses for the Roman numeral. We’ll fill it in later. • Write the name of the negative ion. • If it is a monatomic ion (a plain ol’ element), then the ending will be –ide. • If it is a polyatomic ion, then the ending will be probably be –ite or –ate. • Fill in the Roman numeral. You’ll need to determine the ORIGINAL charge of cation. It’s that positive charge that goes in the parentheses. Na2CO3 Helpful Tip: Don’t be intimidated by polyatomic ions. Simply find the metal, and the rest of the compound is the anion. If the anion has more than one element, then it is a polyatomic ion.

  5. Example 4 • Write the name of the metal element, which is the positive ion. • If the metal is a transition metal (except for Ag or Zn), draw parentheses for the Roman numeral. We’ll fill it in later. • Write the name of the negative ion. • If it is a monatomic ion (a plain ol’ element), then the ending will be –ide. • If it is a polyatomic ion, then the ending will be probably be –ite or –ate. • Fill in the Roman numeral. You’ll need to determine the ORIGINAL charge of cation. It’s that positive charge that goes in the parentheses. CuF2 Helpful Tip: Don’t ever backwards criss-cross to find the polyatomic ion. If the subscripts have been reduced, then you’ll make a mistake.

  6. Comparison Examples LiNO2 LiNO3 Li3N

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