Chemistry (Combined Science) · GCSE · Edexcel · Edexcel GCSE Combined Science (1SC0) — Chemistry — Foundation · Specification point · 1.11 · Key concepts in chemistry · Atomic structure
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| Students should: | Maths skills |
|---|---|
1.11 Explain how the existence of isotopes results in relative atomic masses of some elements not being whole numbers | 1a, 1c |