1. Chemical Names and Formulas Overview Metals and Non-Metals Ions and Ionic Charges Types of Compounds Systematic Names -Writing Names and Formulas

2. Naming Compounds Tutorial General Information General Information General Information General Information Binary Ionic Compounds Binary Ionic Compounds Binary Ionic Compounds Binary Ionic Compounds Ternary Ionic Compounds/Poly-atomic Ions Ternary Ionic Compounds/Poly-atomic Ions Ternary Ionic Compounds/Poly-atomic Ions Ternary Ionic Compounds/Poly-atomic Ions Naming w/metals that have more than 1 charge (Transition Metals) Naming w/metals that have more than 1 charge (Transition Metals) Naming w/metals that have more than 1 charge (Transition Metals) Naming w/metals that have more than 1 charge (Transition Metals) Molecular Compounds Molecular Compounds Molecular Compounds Molecular Compounds Naming Acids Naming Acids Naming Acids Naming Acids

3. Metals and Nonmetals Stairway Of Division on Periodic Table Stairway Of Division on Periodic Table C, P, Se, I, Rn and to the right are non- metals C, P, Se, I, Rn and to the right are non- metals B, Si, As, Ge, Sb, Te, Po, At are semi- metals B, Si, As, Ge, Sb, Te, Po, At are semi- metals All others are metals All others are metals

4. Ions Cations Positively Charged Atoms Cations Positively Charged Atoms i.e.Na + i.e.Na + Anions Negatively Charged Atoms Anions Negatively Charged Atoms i.e.Cl - i.e.Cl -

5. IONIC CHARGES Group I -> Group I -> Group II -> Group II -> Group III -> Group III -> Group IV -> Group IV ->1+2+3+4+

6. IONIC CHARGES Group V -> Group V -> Group VI -> Group VI -> Group VII -> Group VII -> Group VIII -> Group VIII ->3-2-1- Noble Gases

7. TYPES OF COMPOUNDS Ionic Compounds Ionic Compounds composed of positive and composed of positive and negative ions. negative ions. usually formed from a metal and non-metal. usually formed from a metal and non-metal. these elements are not attached these elements are not attached to one another. to one another.

8. TYPES OF COMPOUNDS Ionic Compounds con’t Ionic Compounds con’t Examples ExamplesNaCl CaBr 2 KI

9. CHEMICAL FORMULAS Definition Definition shows the kind and numbers of atoms in the smallest representative unit of the substance. shows the kind and numbers of atoms in the smallest representative unit of the substance. i. e. i. e. NaCl NaCl

10. IONIC COMPOUNDS A formula unit is the lowest whole number ratio of ions in an ionic compound. A formula unit is the lowest whole number ratio of ions in an ionic compound. i.e. Na 2 Cl 2 -> NaCl i.e. Na 2 Cl 2 -> NaCl There is no such thing as a molecule of NaCl!!!!!!!!! There is no such thing as a molecule of NaCl!!!!!!!!!

11. IONIC COMPOUNDS If charges cancel, just write the symbols If charges cancel, just write the symbols Na +1 Cl -1 NaCl If charges do not cancel, criss-cross: If charges do not cancel, criss-cross: Ca +2 Cl -1 CaCl 2 ***Do not move the charge, only the number ***Do not write the 1

12. NAMING COMPOUNDS Your ability to name compounds and write formula’s hinges on your ability to recognize whether a compound is Ionic or Molecular. Your ability to name compounds and write formula’s hinges on your ability to recognize whether a compound is Ionic or Molecular.

13. BINARY IONIC COMPOUNDS Binary means 2 elements Binary means 2 elements Ionic means a metal and a non- metal (or cation and anion) Ionic means a metal and a non- metal (or cation and anion) Writing Formulas Writing Formulas charges must balance so charges must balance so compound charge is neutral. compound charge is neutral.

14. BINARY IONIC COMPOUNDS Writing Formulas from Names Writing Formulas from Names 1st word = CATION 1st word = CATION 2nd word = ANION name 2nd word = ANION name with ide ending.

15. BINARY IONIC COMPOUNDS NaBr NaBr MgF 2 MgF 2 Sodium Bromide Sodium Bromide Magnesium Fluoride Magnesium Fluoride

16. BINARY IONIC COMPOUNDS Potassium Chloride Potassium Chloride Aluminum Oxide Aluminum Oxide notice ending of name is ide! notice ending of name is ide! K + Cl - -> KCl Al 2 3+ O 3 2- -> Al 2 O 3

17. Polyatomic Ions Definitiontightly bound groups of atoms that behave as a unit and carry a charge. Definitiontightly bound groups of atoms that behave as a unit and carry a charge. Example SO 3 2-, NO 2 -, ClO 2 - Example SO 3 2-, NO 2 -, ClO 2 -

18. TERNARY IONIC COMPOUNDS Ternary means 3 different elements Ternary means 3 different elements Usually contain Poly-atomic Ions Usually contain Poly-atomic Ions Ionic means cation and anion Ionic means cation and anion

19. TERNARY IONIC COMPOUNDS:Writing Formulas Ca 2+ CO 3 2- Ca 2+ CO 3 2- CaCO 3 Charges canceled. Just write the symbols Calcium Carbonate Calcium Carbonate

20. TERNARY IONIC COMPOUNDS: Naming Calcium Nitrate Calcium Nitrate Notice the charges didn’t cancel so they criss crossed Ca +2 (NO 3 ) -1 Ca +2 (NO 3 ) -1 Ca(NO 3 ) 2 Ca(NO 3 ) 2

21. Naming with Transition Metals First word = CATION First word = CATION Second word = ANION Second word = ANION –The Roman numeral will tell you the charge of the transition metal –Silver (Ag) is an exception. It’s charge is +1

22. Naming Transition Metals Copper (I) Oxide Copper (I) Oxide Cu +1 O -2 Cu +1 O -2 Cu 2 O Cu 2 O

23. Writing Formulas with Transition Metals FeCl 3 FeCl 3 Fe +3 Cl -1 FeCl 2 FeCl 2 Fe +2 Cl -1 Iron (III) Chloride Iron (III) Chloride Iron (II) Chloride Iron (II) Chloride *Backwards criss-cross to know the charge/Roman numeral

24. TYPES OF COMPOUNDS Molecular Compounds Molecular Compounds composed of molecules in which elements share electrons. composed of molecules in which elements share electrons. usually composed of 2 nonmetals. usually composed of 2 nonmetals. these elements are attached these elements are attached

25. MOLECULAR FORMULA Definition Definition shows the numbers and shows the numbers and kinds of atoms present in a kinds of atoms present in a molecule of a compound. molecule of a compound. i. e. i. e. CO CO

26. TYPES OF COMPOUNDS Molecular Compounds con’t Molecular Compounds con’t ExamplesExamples CS 2 SiO 2 BF 3

27. BINARY MOLECULAR COMPOUNDS Binary means 2 elements Binary means 2 elements Molecular means 2 non- metals Molecular means 2 non- metals NO ionic charges are present NO ionic charges are present

28. Naming Binary Molecular Compounds Prefixes are used to show how many atoms are present in each molecule. Prefixes are used to show how many atoms are present in each molecule.

29. Covalent Prefixes Mono (or no prefix) – 1 Mono (or no prefix) – 1 Di – 2 Di – 2 Tri – 3 Tri – 3 Tetra – 4 Tetra – 4 Penta – 5 Penta – 5 Hexa – 6 Hexa – 6 Hepta – 7 Hepta – 7 Octa – 8 Octa – 8 Nona – 9 Nona – 9 Deca – 10 Deca – 10

30. Writing Binary Molecular Compounds CO 2 no mono prefix is used on first element CO 2 no mono prefix is used on first element Carbon Dioxide Carbon Dioxide Di means 2 oxygens!! Di means 2 oxygens!!

31. Naming Binary Molecular Compounds 2 ways it’s done! 2 ways it’s done! (prefix + element name) (prefix + element name) i.e. N 2 O dinitrogen monoxide

32. Naming Binary Molecular Compounds (prefix + element root + ide) (prefix + element root + ide) i.e.PCl 3 Phosphorous Trichloride All binary compounds end in ide!!! All binary compounds end in ide!!!