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Naming Ionic Compounds

Naming Ionic Compounds. What is a compound?. A compound is a pure substance consisting of two or more different elements. There are two types of compounds: Covalent Ionic. Name the following ionic compounds:. NaCl __________________

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Naming Ionic Compounds

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  1. Naming Ionic Compounds

  2. What is a compound? • A compound is a pure substance consisting of two or more different elements • There are two types of compounds: • Covalent • Ionic

  3. Name the following ionic compounds: • NaCl __________________ • CaI2 __________________ • Li2SO4 ___________________________ • FeO __________________ • Cu(NO3)2 ___________________________ Having trouble??? Use thisflowchartto help you discover how to name these compounds!

  4. Ready to practice?

  5. Ionic Compounds • Ionic compounds are composed of a metal and a non-metal • Metals are located to the left of the stair-step Metals Non-metals Go back to flowchart Ready to practice?

  6. e- Li 3 p+ Cations e- e- • A cation is a positively (+) charged ion • Metals are cations • To form a cation, a metal atom lose one or more electrons Neutral Li atom has 3 p+ and 3 e- (+3) + (-3) = 0 (no charge) e- Li 3 p+ e- A lithium ion has 3 p+ and 2 e- (+3) + (-2) = +1 Ready to practice? Go back to flowchart

  7. e- e- e- O 8 p+ Anions e- e- e- e- e- • An anion is a negatively (−) charged ion • Non-metals are anions • To form an anion, a non-metal gains one or more electrons Neutral O atom has 8 p+ and 8 e- (+8) + (-8) = 0 (no charge) e- e- O 8 p+ e- e- e- e- An oxygen ion has 8 p+ and 6 e- (+8) + (-6) = -2 Ready to practice? Go back to flowchart

  8. Fixed-Charge Ions • Most metals form cations with a single charge • For example: Li+, Mg2+, Cl-, O2- • You can find these charges using group numbers Go back to flowchart Ready to practice?

  9. Variable Charges • Some transition metals can form cations with more than one charge Go back to flowchart Ready to practice?

  10. Naming Cations with a Fixed Charge • When naming a cation with a fixed charge, simply say the element’s name • The element name can be found on the periodic table Go back to flowchart Ready to practice?

  11. Naming Cations with a Variable Charge • To name a cation with a variable charges, use a Roman numeral to indicate the charge • Examples: Go back to flowchart Ready to practice?

  12. Monatomic Ions • A monatomic ion is an ion that is made of only one atom • Examples: Na+, Ca2+, Cl-, S2- Go back to flowchart Ready to practice?

  13. Polyatomic Ions • A polyatomic ion is an ion made up of more than one type of atom • Examples: SO42-, NO2-, PO43- Go back to flowchart Ready to practice?

  14. Naming Single Anions • To name a single anion use the root of the element name and add the ending –ide Chlorine + -ide  Chloride root Go back to flowchart Ready to practice?

  15. Naming Polyatomic Anions • To name polyatomic anions, use the name of the polyatomic ion • These ions usually end in -ate or -ite Go back to flowchart Ready to practice?

  16. Name the following ionic compounds: • NaCl __________________ • CaI2 __________________ • Li2SO4 ___________________________ • FeO __________________ • Cu(NO3)2 ___________________________ Check your answers! Go back to flowchart

  17. Check Your Answers! • NaCl sodium chloride • CaI2 calcium iodide • Li2SO4 lithium sulfate • FeO iron (II) oxide • Cu(NO3)2 copper (II) nitrate

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