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Ionic Bonding/Naming

Ionic Bonding/Naming. Objective Today I will be able to: Correctly name and write the formula for ionic compounds Describe the properties of ionic compounds Evaluation/ Assessment

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Ionic Bonding/Naming

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  1. Ionic Bonding/Naming

  2. Objective • Today I will be able to: • Correctly name and write the formula for ionic compounds • Describe the properties of ionic compounds • Evaluation/ Assessment • Informal assessment – Listening to group interactions as they complete the naming and writing formulas worksheets. • Formal Assessment – Analyzing student responses to the exit ticket and naming/writing formulas worksheet • Common Core Connection • Build Strong Content Knowledge • Look for and express regularity in repeated reasoning

  3. Lesson Sequence • Warm – Up • Elaborate: Writing Ionic Formulas Practice • Formal assessment • Explain: Naming Ionic Compounds and Properties of Ionic Compounds Notes • Elaborate: Naming Ionic Compounds Practice • Formal assessment • Explain: Ionic Compound Properties and Naming Covalent Compounds • Evaluate: Exit ticket • Formal assessment

  4. Warm - Up • Try to solve these problems without your ions sheet first! • What is the symbol for the following ions? • Sulfate • Carbonate • Phospate • Write the ionic formula for the following ions • Ca2+ PO43-

  5. Objective • Today I will be able to: • Correctly name and write the formula for ionic compounds • Describe the properties of ionic compounds

  6. Homework • Finish Classwork • Lab Wednesday, Wear Closed Toe Shoes

  7. Agenda • Warm Up • Collect HW • Ionic Bonds • Writing formulas Practice • Properties and Naming Notes • Naming formulas Practice • Exit Ticket

  8. Review responses as a class, students will keep responses as a study tool Writing Ionic Formulas Practice – Pick 7 rows to complete!

  9. Bonding

  10. Why do elements form bonds? • Every element wants a full outer energy level to satisfy the octet rule • They achieve this by gaining, losing and sharing electrons

  11. Ionic Bonds

  12. Ionic Bonds • Formed by the transfer of electrons from one atom to another • Generally between a metal and a nonmetal • Held together by electrostatic forces • (opposite charges attracting)

  13. Properties of Ionic Compounds • Crystalline Solid at room temperature • High melting and boiling points • Soluble in water (when they dissolve in water they conduct electricity)

  14. Properties of Ionic Compounds Cont. • Ionic compounds are hard, rigid and brittle • Crystalline Structure – crystal retains it shape until enough energy is applied to shift the positions and crack the crystal

  15. Ionic compound dissolved in water Solid ionic compound Molten ionic compound Ionic Compounds Properties Cont. • Molten state can also conduct electricity

  16. Naming Ionic Compounds • Standard Naming Rules • Write the full name of the metal first • Then write the second element, take off the ending and add the suffix –ide • If the second ion is a polyatomic ion, use the full name of the ion • Examples • CaO – Calcium Oxide • BaCl2 – Barium Chloride

  17. Naming Ionic Compounds • Exceptions • Transition metals can have multiple oxidation numbers • Standard naming rules apply but we need to account for the oxidation number • Two Naming Systems • Classical • Stock

  18. Use the Stock Method for transition metals • Stock method - use a roman numeral • Examples • FeCl3 – Iron(III) Chloride • FeCl2 – Iron (II) Chloride • PbCl4 – Lead(IV) Chloride • We will discuss an additional method called the classical method tomorrow • Stock is more standard

  19. Complete the worksheet. Please ask Ms. Ose for help with questions. Naming Ionic Compounds Practice

  20. Exit Ticket • What’s wrong with the following formula/ name of compound? • Mg2Cl • MgSO4 – Magnesium sulfide • Baride Chlorine

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