Describe5 marksStandard
Describe what is meant by each of the following terms.
(a) the unified atomic mass unit (b) relative atomic mass, (c) relative isotopic mass (d) relative molecular mass, (e) relative formula mass
CAIE A Level Chemistry 9701 · Atoms, molecules and stoichiometry
Atoms, molecules and stoichiometry: describe question
How this question is marked
5 marks, so the mark scheme is looking for about 5 separate creditworthy points. Making the same point twice in different words earns it once.
Describe means: Say what happens or what something is like, in order and with detail. You are not being asked why. If there is data, quote it: name the trend, then give figures with units at the points where it changes.
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