Ch 5&6.3: Chemical Bonding and chemical reactions

In this unit, we’ll be looking expanding on what we did in the last unit about the periodic table. We’ll look at:

  • Patterns from the periodic table in terms of valence electrons and resultingcharges
  • Why/how elements bond together to make compounds and molecules.
  • How the atoms’ families (metals, nonmetals or metalloids) affects the kind of bond (ionic or covalent) that forms.
  • Naming of ionic and covalent compounds, including polyatomic ions
  • Writing a formula from the name of the compound, including determining charges for transition metals.
  • Balancing chemical equations

For the test, you will have to draw Lewis diagrams for some compounds (not just atoms). You should be able to correctly name the compounds and tell whether they are ionic or covalent bonds. You should be able to balance chemical equations, including writing the formulas from the name. You will also have to answer some short answer and/or multiple choice questions about how matter is constructed.

You will have a periodic table to help you out.

Ch. 5 & 6.3 Vocab

+ if you’re an expert (can explain to someone else)

 if you’ve heard of it (and know a little)

0 if you’ve never heard of it

_____ chemical bond______chemical formula_____

_____ compound______ionic bond_____

_____ diatomic element______metallic bond_____

_____ covalent bond______polar covalent bond_____

_____ nonpolar covalent bond______polyatomic ion_____

_____ oxidation number______charge _____

_____ cation______anion_____

_____ coefficient______subscript_____

Learning Targets (Skills)

_____ Determine the charge on an atom; relate this to its position on the Periodic

Table(in class, ch 4 extension)

_____ Determine the number of atoms of any element in a compound given the

chemical formula(ch 5.1)

_____ Distinguish between what happens in an ionic and covalent bond (ch 5.2)

_____ Identify element combinations as either ionic or covalent(ch 5.2)

_____ Draw Lewis diagrams that represent ionic bonds (use arrows) and give the

correct formula (ch 5.2, in class)

_____ Draw Lewis diagrams that represent covalent bonds (use circles) and give the

correct formula (ch 5.2, in class)

_____ Write chemical formulas for given combinations of elements and/or polyatomic

ions(given elements, write the compound)(ch 5.2)

_____ Given the chemical formulas, name simple ionic compounds (including ones

containing polyatomic ions)(ch 5.3)

_____ Given the chemical formulas, name ionic compounds (ch 5.3)

_____ Given the chemical formulas, name covalent compounds (ch 5.3)

_____ Write chemical formulas given the compound name(ch 5.3)

_____ Determine charge on a transition metal (using the nonmetal’s charge) (ch 5.3)

_____ Balance chemical equations given the formulas (ch 6.3)

_____ Given the names of compounds in a chemical reaction, write the formulas for

the compounds and balance the equation (ch 6.3)