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C1: The Language of Chemistry and Structure of Matter (C1.2 Basic ideas about atoms)
Quick questions on Basic Ideas about Atoms (C1.2) - Eduqas A-Level Chemistry
4short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is isotopes and chemistry?Show answer
Isotopes react identically because chemistry depends on electron arrangement, which is the same; only physical properties tied to mass (such as density or rate of diffusion) differ.
What is ionisation energy equation detail?Show answer
The species must be gaseous and the change is per mole; omitting the state symbols loses the mark.
What is q1?Show answer
Write the full electron configuration of a sulfur atom (atomic number 16). [1 mark]
What is q2?Show answer
Explain why the first ionisation energy of magnesium is higher than that of sodium. [2 marks]
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