| P7.1 |
Atomic structure:
- Understand the atom in terms of protons, neutrons and electrons.
- Know and be able to apply the nuclear model of atomic structure.
- Know the relative charges and masses of protons, neutrons and electrons.
- Understand and be able to use the terms atomic number and mass number.
- Know and understand the term isotope.
- Know and understand the term nuclide and use nuclide notation.
- Understand that ionisation is caused by the gain or loss of electrons.
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| P7.2 |
Radioactive decay:
- Know and understand that emissions arise from an unstable nucleus.
- Know and understand the random nature of emissions.
- Know and understand the differences between alpha, beta and gamma emission.
- Know and understand the nature of alpha and beta particles, and gamma radiation.
- Be able to use and interpret nuclear equations.
- Know the effect of decay on atomic number and mass number.
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| P7.3 |
Ionising radiation:
- Know the relative penetrating abilities of alpha, beta and gamma radiation.
- Know the relative ionising abilities of alpha, beta and gamma radiation.
- Understand qualitatively the deflection of alpha, beta and gamma radiation in electric or magnetic fields.
- Know and appreciate the existence of background radiation.
- Understand the applications and hazards of ionising radiation.
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