Oxford 9 2023 Plate Tectonics Ch 6 PDF
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2023
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Summary
This document discusses various aspects of atoms, including their history, subatomic particles, and different types of particles. It includes questions that encourage critical thinking about the structure of atoms and their possible visual representations. The document is suitable for a secondary school level science course or a similar educational program.
Full Transcript
# Matter ## 7.1 The History of the Atom ## 7.2 Atoms Are Made of Subatomic Particles ## 7.3 Atoms Have Mass ## 7.4 Electrons Are Arranged in Shells ## 7.5 Ions Have More or Less Electrons ## 7.6 Isotopes Have More or Less Neutrons ## 7.7 Isotopes Can Release Alpha, Beta or Gamma Radiation ## 7.8 T...
# Matter ## 7.1 The History of the Atom ## 7.2 Atoms Are Made of Subatomic Particles ## 7.3 Atoms Have Mass ## 7.4 Electrons Are Arranged in Shells ## 7.5 Ions Have More or Less Electrons ## 7.6 Isotopes Have More or Less Neutrons ## 7.7 Isotopes Can Release Alpha, Beta or Gamma Radiation ## 7.8 The Half-Life of Isotopes Can Be Used to Tell the Time ## 7.9 Radiation Is Used in Medicine ### What If?: Aluminium Atoms * **What you need:** strip of aluminium foil, scissors, microscope. * **What to do:** 1. Each piece of aluminium foil contains atoms of aluminium. Use the scissors to cut your piece in half. 2. Place one half of the aluminium foil in the bin. Cut the remaining piece in half. 3. Repeat step 2 until your piece of aluminium is too small to cut. 4. Examine the aluminium using the microscope. * **What if?** * What if you were able to continue to cut the piece of aluminium until just one atom remained? (Could you see it under the microscope?) * What if you could see inside the aluminium atom? (What would you see?) The image associated with this text is of a diagram, showing different stages of how atoms are made up. The diagram is too complex to be represented in markdown.
