ACARA AC9S9U06, The atomic model and radioactivity
Year 9 · Science Understanding · Chemical sciences
Explain how the model of the atom changed after electrons, protons and neutrons were discovered, and describe how natural radioactive decay leads to stable atoms.
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Australian Curriculum content descriptions (c) ACARA, used under CC BY 4.0. Descriptions are paraphrased. See ACARA Science scope and sequence F-10 (v9).