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The Language of Chemistry
Making Compounds
Now we can have some fun making compounds. The table below gives you a few examples:
Remember the Rule : All of the bonding arms must be used!
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Name of compound |
Atoms required |
Molecule |
Notes |
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sodium chloride |
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Both sodium and chlorine have one bonding arm. One chlorine atom is needed to bond with one sodium atom. |
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calcium oxide |
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Both calcium and oxygen have two bonding arms. One calcium atom is needed to bond with one oxygen atom. |
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hydrogen sulphide |
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The hydrogen atom has one bonding arm. A sulphur atom has two. Two
atoms of hydrogen are needed to join with the sulphur atom. |
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iron II chloride |
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The name tells us that iron has two bonding arms in this compound. Chlorine has one. Two chlorine atoms are needed to bond
with one iron atom. |
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Test Yourself
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Homework
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You may have noticed that metals never make chemical bonds with other metals.
Non-metals, however, can make chemical bonds with either metals or other non-metals.
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