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LEARNING TARGETS
Distinguish between ionic and covalent compounds
State the names and formulas of ionic and covalent compounds.
Are there rules that determine how elements bond into molecules?
In general an element will always form the same number of bonds to other atoms when it bonds to form a molecule. The table below shows how many bonds some common elements form:
Elements can either bond with single bonds or double bonds.
Draw diagrams of the following molecules (IN PENCIL PLEASE!) and from number 3 onwards also give the ratio of the number of different atoms in each (e,g, in water - H:O is 2:1)
(1) H2
(2) O2
(3) H2O
(4) CO2
(5) HCl
(6) MgO
(7) NH3
(8) NaCl
(9) CH4
(10) C2H6
(11) C2H4
(12) C2H3OH
(13) C6H12
(14) C6H6
When you are finished you can use the model kits to make each of the above molecules. Make sure you choose the atoms with the correct number of connections (e.g. Carbon must have 4).
Complete the lab below and record your answers in the document (check Google classroom!).
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