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

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

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

Ions Cations Positively Charged Atoms Na + Anions Negatively Charged Atoms Cl -

Ionic charges Group I  Group II  Group III  Group IV 

Ionic charges Group V  Group VI  Group VII  Group VIII  Noble Gases

Types of compounds Ionic Compounds composed of positive and negative ions. usually formed from a metal and non-metal. these elements are NOT attached to one another.

Examples NaCl CaBr 2 KI

Chemical formulas Definition shows the kind and numbers of atoms in the smallest representative unit of the substance. NaCl

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!!!!!!!!!

Naming compounds The ability to name compounds and write formulas hinges on one’s ability to recognize whether a compound is Ionic or Molecular.

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.

Binary ionic compounds Writing Formulas from Names 1st word = CATION 2nd word = ANION name with ide ending.

Binary ionic compounds NaBr MgF 2 Sodium Bromide Magnesium Fluoride

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

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

Ternary ionic compounds Ternary means 3 different elements Usually contain Poly-atomic Ions Ionic means cation and anion

Ternary Ionic Compounds: writing formulas Ca 2+ CO 3 2-  CaCO 3 Calcium Carbonate

Ternary Ionic Compounds: Naming Calcium Nitrate  Ca(NO3)2

Naming with Transition Metals First word = CATION Second word = ANION determine what charge is on the transition metal if more than one exists

Naming Transition Metals Copper (I) Oxide Cu 2 O

Writing Formulas with Transition Metals FeCl 3 FeCl 2 Iron (III) Chloride Iron (II) Chloride

Types of Compounds Molecular Compounds composed of molecules in which elements share electrons. usually composed of 2 nonmetals. these elements are attached

Molecular Formula Definition shows the numbers and kinds of atoms present in a molecule of a compound. i. e. CO, CS 2, SiO 2,BF 3

Binary Molecular Compounds Binary means 2 elements Molecular means 2 non-metals NO ionic charges are present

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

Writing Binary Molecular Compounds CO 2 no mono prefix is used on first element Carbon Dioxide Di or 2 oxygen

Naming Binary Molecular Compounds First element prefix + element name i.e. N 2 Odinitrogen monoxide

Naming Binary Molecular Compounds Second element prefix + element root + ide i.e. PCl 3 Phosphorous Trichloride All binary compounds end in -ide.

Naming Acids Anion Endings -ide Example HCl Hydrogen chloride HF Hydrogen fluoride Acid Name hydro- (stem)- ic acid Hydrochloric Acid

Naming Acids Anion Ending -ite ExampleH 2 SO 3 Hydrogen Sulfite Acid Name (stem)-ous acid Sulfurous Acid

Naming Acids Anion Ending ate Example H 2 SO 4 Hydrogen Sulfate Acid Name (stem)-ic acid Sulfuric Acid