plsss tell me the important topics of chapter structure of atom which mostly come in unit test...................... pls its my unit test tomorrow
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Molecules, elements,chemical formulas, chemical valency, atomic number, mass number are the related topics.
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Read the definitions and the tables properly. Don't miss the summary. Summaries are important although that depends on your teacher. Solve all structured questions and understandings and you'll be good to go!
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