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4.1 Naming Binary Compounds

4.1 Naming Binary Compounds. Period 5 Group 5. Naming Compounds that Contain Metals & Nonmetals. Metals lose one or more electrons to become a cation Nonmetals gain one or more electrons to become an anion Resulting substance is called a binary ionic compound (BIC)

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4.1 Naming Binary Compounds

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  1. 4.1 Naming Binary Compounds Period 5 Group 5

  2. Naming Compounds that Contain Metals & Nonmetals • Metals lose one or more electrons to become a cation • Nonmetals gain one or more electrons to become an anion • Resulting substance is called a binary ionic compound (BIC) • BIC’s contain cations and anions. Cations come first • Type I- Na+, Cs+, Ca2+, Al3+ • Type II- Forms two or more cations

  3. How many types of binary ionic compounds are there? There are 3 types of binary ionic compounds; Type I, Type II, and Type III.

  4. Type I • Cations are always named first, anions second • Anions take the root and adds –ide • Formulas- ions are represented by the element symbol Cl. Cl means Cl-, Na means Na+ • Individual ions- charge is always included

  5. Type I Example:

  6. Type II • Many metals form more than one type of cation • We use roman numerals to specify the cation charge • To determine the charge, we balance them out • Roman numerals tell the charge on the ion, not the number of ions present

  7. Type II Example:

  8. Type III • Type III only contains nonmetals • The first element in the formula is named first, and the full element name is used • The second name is named as if it were an anion (-ide) • Prefixes are used to figure out the number of atoms present • Prefix mono- is never used for the first element

  9. Type III Example:

  10. Review • Type I- ionic compound with metals that always form a cation with the same charge • Type II- ionic compounds with metals (transition metals) that form cations with various charges • Type III- compounds with only nonmetals

  11. Review Example: Type II

  12. Quiz • What happens to the metals and nonmetals? 2. Type I 3. Type II

  13. Quiz • Type III 5. Type I

  14. Answer Key • The metals lose ions to become a cation and the nonmetals gain ions to become an anion. 2. 3.

  15. Answer Key 4. 5.

  16. References • http://wps.prenhall.com/wps/media/objects/165/169289/SW-comart/2_6_table.gif

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