Lesson: Radioactivity Science • Third Year of Preparatory School

Students will be able to

• recognise that the protons and neutrons in an atomic nucleus are bound by a force,
• recognise that nuclei of atoms of some elements are unstable and can decay,
• recognise that a decaying atomic nucleus releases particles or EM waves,
• distinguish between alpha, beta, and gamma radiation nominally in terms of their compositions,
• recognise that the decay of a particular atomic nucleus occurs spontaneously,
• identify some naturally radioactive elements,
• recognise nuclei with a higher proportion of neutrons are more likely to be able to decay,
• recognise that a change in the number of neutrons in an atomic nucleus results in an atom changing to an atom of a different isotope.