Atomic number and mass number

Chemistry · A-Level · Edexcel · Edexcel A-level Chemistry — 9CH0 · Specification point · 1.3 · Atomic Structure and the Periodic Table

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Students should:
$know what is meant by the terms ‘atomic (proton) number’ and ‘mass number’$

Atomic number and mass number (1.3) | Edexcel A-level Chemistry — 9CH0 | KnowledgeSet