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Ch. 5 Ionic Bonding

Ch. 5 Ionic Bonding. Naming Section 3. Need to Know. Binary Ionic Compounds Binary – indicates that the compound is made up of just two elements. Rules for Naming Ions. Simple Cations Borrow names from names of elements Examples K + → potassium ion Zn 2+ → zinc ion.

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Ch. 5 Ionic Bonding

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  1. Ch. 5Ionic Bonding Naming Section 3

  2. Need to Know • BinaryIonic Compounds • Binary – indicates that the compound is made up of just two elements

  3. Rules for Naming Ions • Simple Cations • Borrow names from names of elements • Examples • K+ → potassium ion • Zn2+ → zinc ion

  4. Rules for Naming Ions • Elements that form two or more ions • Use Roman #’s • Examples • Cu+ → copper (I) ion • Cu2+ → copper (II) ion

  5. Rules for Naming Ions • Simple Anions • Formed from name of element, but it ends in –ide • Examples • Cl-→ chloride ion • O2-→ oxide ion • P3-→ phosphide ion

  6. Naming Binary Ionic Compounds • The cation is always named first • Examples • NaCl→ SodiumChloride • ZnS→ ZincSulfide • K2O→ PotassiumOxide • CuCl2→ Copper (II)Chloride

  7. Polyatomic Ions • poly – “many” • an ion made of two or more atoms • can be treated as a single ion  charge is not found on a single atom

  8. Polyatomic Ions • Endings • Contains oxygen • ends with –ite or –ate • -ite “less oxygen” • -ate  “more oxygen” • Examples • Nitrate – NO3- • Nitrite – NO2-

  9. Polyatomic Ions • Prefixes • mono – “one” • di – “two” • thio – “replace oxygen with sulfur” • Examples • monohydrogen phosphate HPO42- • dihydrogen phosphate H2PO42-

  10. Ch. 5Ionic Bonding Practice Section 5.3

  11. N3- Fe3+ Mg2+ Ca3N2 FeI3 Na2O AlCl3 SrO CuCl2 Al2S3 PracticeWrite the names for the following:

  12. PracticeWrite the formulas for the following: • Copper (II) oxide • Sodium fluoride • Zinc chloride • Aluminum sulfide • Potassium nitride

  13. Practice Write the formula for he following: Write the name for the following: Ca(NO3)2 CuSO4 CuNO3 Na2CO3 K2Cr2O7 • Aluminum nitrate • Ammonium phosphate • Ammonium acetate • Potassium permanganate

  14. Homework Section Review 5.3 #’s 5 - 8

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