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GCSE Chemistry - Elements, Isotopes & Relative Atomic Mass (2026/27 exams)
⭐️ Check out our website https://www.cognito.org/ ⭐️ *** WHAT'S COVERED *** 1. Elements and Atomic Structure * Recap of subatomic particles (protons, neutrons, electrons). * The significance of proton number (atomic number) for element identification. * Overview of the Periodic Table, nuclear symbols, and ...
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