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Chemical Names and Formulas Overview Metals and Non-Metals Ions and Ionic Charges Types of Compounds Systematic Names -Writing Names and Formulas
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Naming Compounds Tutorial General Information General Information Binary Ionic Compounds Binary Ionic Compounds 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) Molecular Compounds Molecular Compounds Naming Acids Naming Acids
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Metals and Nonmetals Stairway Of Division on Periodic Table non-metals C, P, Se, I, Rn and to the right semi-metals B, Si, As, Ge, Sb, Te, Po, At All others are metals
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Ions Cations Positively Charged Atoms i.e.Na + Anions Negatively Charged Atoms i.e.Cl -
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IONIC CHARGES Group I -> Group II -> Group III -> Group IV -> 1+ 2+ 3+ 4+
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IONIC CHARGES Group V -> Group VI -> Group VII -> Group VIII -> 3- 2- 1- Noble Gases
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Ionic Compounds composed of positive and negative ions. usually formed from a metal and non-metal. these elements are not attached to one another.
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TYPES OF COMPOUNDS Ionic Compounds con’t Examples NaCl CaBr 2 KI
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CHEMICAL FORMULAS shows the kind and numbers of atoms in the smallest representative unit of the substance. i. e. NaCl
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IONIC COMPOUNDS A formula unit is the lowest whole number ratio of ions in an ionic compound. i.e. Na 2 Cl 2 -> NaCl There is no such thing as a molecule of NaCl!!!!!!!!!
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NAMING COMPOUNDS Your ability to name compounds and write formula’s hinges on your ability to recognize whether a compound is Ionic or Molecular.
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BINARY IONIC COMPOUNDS Binary means 2 elements Ionic means a metal and a non- metal (or cation and anion) charges must balance so compound charge is neutral.
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BINARY IONIC COMPOUNDS Writing Formulas from Names 1st word = CATION 2nd word = ANION name with ide ending.
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BINARY IONIC COMPOUNDS NaBr MgF 2 Sodium Bromide Magnesiu m Fluoride
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BINARY IONIC COMPOUNDS Potassium Chloride Aluminum Oxide notice ending of name is ide! K + Cl - -> KCl Al 2 3+ O 3 2- - > Al 2 O 3
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Polyatomic Ions Definitiontightly bound groups of atoms that behave as a unit and carry a charge. Example SO 3 2-, NO 2 -, ClO 2 -
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TERNARY IONIC COMPOUNDS Ternary means 3 different elements Usually contain Poly-atomic Ions Ionic means cation and anion
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TERNARY IONIC COMPOUNDS:Writing Formulas Ca 2+ CO 3 2- -> CaCO 3 Calcium Carbonate
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TERNARY IONIC COMPOUNDS: Naming Calcium Nitrate Ca(NO 3 ) 2
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Naming with Transition Metals First word = CATION Second word = ANION You need to determine what charge is on the transition metal if more than one exists.
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Naming Transition Metals Copper (I) Oxide Cu 2 O
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Writing Formulas with Transition Metals FeCl 3 FeCl 2 Iron (III) Chloride Iron (II) Chloride
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TYPES OF COMPOUNDS Molecular Compounds composed of molecules in which elements share electrons. usually composed of 2 nonmetals. these elements are attached
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MOLECULAR FORMULA Definition shows the numbers and kinds of atoms present in a molecule of a compound. i. e. CO
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TYPES OF COMPOUNDS Molecular Compounds con’t Examples CS 2 SiO 2 BF 3
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BINARY MOLECULAR COMPOUNDS Binary means 2 elements Molecular means 2 non-metals NO ionic charges are present
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Naming Binary Molecular Compounds Prefixes are used to show how many atoms are present in each molecule. mono, di, tri,tetra, penta, hexa, hepta, octa, nona, deca
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Writing Binary Molecular Compounds CO 2 no mono prefix is used on first element Carbon Dioxide Di means 2 oxygens!!
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Naming Binary Molecular Compounds PCl 3 Phosphorous Trichloride All binary compounds end in ide!!!
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Naming with Acids Anion Endings ide Example HCl Acid Name hydro-(stem)- ic acid Hydrochloric Acid
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Naming with Acids Anion Ending ite Example Hydrogen Sulfite Acid Name (stem)-ous acid Sulfurous Acid
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Naming with Acids Anion Ending ate Example Hydrogen Sulfate Acid Name (stem)-ic acid Sulfuric Acid
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