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10 Chemical formula provides a way to represent any chemical substance using the symbol of
the elements present in it.
(a) Write the chemical formula for each of the following compounds.
(i) aluminium fluoride
[1]
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(ii) arsenic oxide
[1]
(iii) germanium chloride
[1]
(b) Deduce the formula of each of the following ions.
(i) nitride
[1]
(ii) strontium
[1]
(iii) gallium
[1]
[Total: 6]
Chapter 2 Atoms, Elements and Compounds 23
Chapter 2.indd 23 3/4/22 11:59 AM
