AC9S9U06 • Year 9 Maths
Explain how the model of the atom changed following the (AC9S9U06)
recognise situations, including financial contexts, that use integers; locate and represent integers on a number line and as coordinates on the Cartesian plane
Choose a learning activity. Homework, Practice and Test use the same eight-question unit bank.
60-second Quick Read
- explain how the model of the atom changed following the discovery of electrons, protons and neutrons and describe how natural radioactive decay results in stable atoms
- Example: comparing the mass and charge of protons, neutrons and electrons
- Common trap: examining how the discovery of electrons, protons and neutrons resulted from experimental evidence and answered questions related to properties and behaviours of atoms