Students think through key ideas of atomic theory. For example, some atoms hold on to electrons better than others and that like charges repel and opposite charges attract. After exploring key concepts, students decide which statements best explain the flow of electric current through a conductor.
Assess your students’ abilities to:
This is image compares a Bohr type model of a conductor and insulator. The key idea is that the conductor has free electrons that are loosely held by the nucleus, and the insulator is made of a compound that has tightly held electrons in an organized lattice matrix.
The behaviour of matter can be explained by the kinetic molecular theory and atomic theory.