Naming-Ionic-and-Covalent-Compound-NEW-VERSION.pptx
- 1. Chemical Names and Formulas Overview Metals and Non-Metals Ions and Ionic Charges Types of Compounds Systematic Names -Writing Names and Formulas
- 2. Which side is ionic/covalent?
- 3. Objectives: Identify Ionic and Covalent Compound. Describe binary and ternary compound. Name and write chemical formula. * Ionic Compound * Covalent Compound
- 4. Identify Ionic and Covalent Compond P4O6 LiSO4 CCl4 Al3C4 BaF2 CO2 PbSO4 NH3 LiCl CdS Cl2O7 Na2O P4O6 XeF4 SO3 NaOH Cr2(SO4)3 K3PO4 Ca(NO3)2 IF5 NCl3 CO2 H2O AgHCO3 Binary Ionic Covalent Ternary
- 5. How will you describe a ternary compound?
- 6. Naming Compounds General Information Binary Ionic Compounds Ternary Ionic Compounds/Poly-atomic Ions Naming w/metals that have more than 1 charge (Transition Metals) Molecular Compounds
- 7. Metals and Nonmetals Stairway Of Division on Periodic Table C, P, Se, I, Rn and to the right are non- metals B, Si, As, Ge, Sb, Te, Po, At are semi- metals All others are metals
- 8. Ions Cations Positively Charged Atoms i.e. Na + Anions Negatively Charged Atoms i.e. Cl -
- 10. IONIC CHARGES Group I -> Group II -> Group III -> Group IV -> 1+ 2+ 3+ 4+
- 11. IONIC CHARGES Group V -> Group VI -> Group VII -> Group VIII -> 3- 2- 1- Noble Gases
- 12. Ionic Compounds composed of positive and negative ions. usually formed from a metal and non-metal. these elements are not attached to one another.
- 13. TYPES OF COMPOUNDS Ionic Compounds cont Examples NaCl CaBr2 KI
- 14. Definition shows the kind and numbers of atoms in the smallest representative unit of the substance. i. e. NaCl
- 15. A formula unit is the lowest whole number ratio of ions in an ionic compound. i.e. Na2Cl2 -> NaCl There is no such thing as a molecule of NaCl!!!!!!!!!
- 16. If charges cancel, just write the symbols Na+1 Cl-1 NaCl If charges do not cancel, criss-cross: Ca+2 Cl-1 CaCl2 ***Do not move the charge, only the number ***Do not write the 1
- 17. NAMING COMPOUNDS Your ability to name compounds and write formulas hinges on your ability to recognize whether a compound is Ionic or Covalent.
- 18. BINARY IONIC COMPOUNDS Binary means 2 elements Ionic means a metal and a non-metal (or cation and anion) Writing Formulas charges must balance so compound charge is neutral.
- 19. BINARY IONIC COMPOUNDS Writing Formulas from Names 1st word = CATION 2nd word = ANION name with ide ending.
- 20. BINARY IONIC COMPOUNDS NaBr MgF2 Sodium Bromide Magnesium Fluoride
- 21. BINARY IONIC COMPOUNDS Potassium Chloride Aluminum Oxide notice ending of name is ide! K+Cl- -> KCl Al2 3+O3 2- -> Al2O3
- 22. Polyatomic Ions Definition tightly bound groups of atoms that behave as a unit and carry a charge. Example SO3 2- , NO2 -, ClO2 -
- 24. TERNARY IONIC COMPOUNDS Ternary means 3 different elements Usually contain Poly-atomic Ions Ionic means cation and anion
- 25. Ca2+CO3 2- CaCO3 Charges canceled. Just write the symbols Calcium carbonate
- 26. TERNARY IONIC COMPOUNDS: Naming Calcium Nitrate Notice the charges didnt cancel so they criss crossed Ca+2 (NO3)-1 Ca(NO3)2
- 27. Naming with Transition Metals First word = CATION Second word = ANION The Roman numeral will tell you the charge of the transition metal Silver (Ag) is an exception. Its charge is +1
- 28. Elements with more than one oxidation state.
- 29. Naming Transition Metals Copper (I) Oxide Cu+1 O- 2 Cu2O
- 30. Writing Formulas with Transition Metals FeCl3 Fe+3 Cl-1 FeCl2 Fe+2 Cl-1 Iron (III) Chloride Iron (II) Chloride *Backwards criss-cross to know the charge/Roman numeral
- 31. TYPES OF COMPOUNDS Covalent/Molecular Compounds composed of molecules in which elements share electrons. usually composed of 2 nonmetals. these elements are attached
- 32. MOLECULAR FORMULA Definition shows the numbers and kinds of atoms present in a molecule of a compound. i. e. CO
- 33. TYPES OF COMPOUNDS Molecular Compounds cont Examples CS2 SiO2 BF3
- 34. BINARY MOLECULAR COMPOUNDS Binary means 2 elements Molecular means 2 non- metals NO ionic charges are present
- 35. Naming Binary Covalent/Molecular Compounds Prefixes are used to show how many atoms are present in each molecule.
- 36. Covalent Prefixes Mono (or no prefix) 1 Di 2 Tri 3 Tetra 4 Penta 5 Hexa 6 Hepta 7 Octa 8 Nona 9 Deca 10
- 37. Writing Binary Molecular Compounds CO2 no mono prefix is used on first element Carbon Dioxide Di means 2 oxygens!!
- 38. Naming Binary Molecular Compounds 2 ways its done! (prefix + element name) i.e. N2O dinitrogen monoxide
- 39. Naming Binary Molecular Compounds (prefix + element root + ide) i.e. PCl3 Phosphorous Trichloride All binary compounds end in ide!!!