PhysicsCode 5054
The atom
What this topic asks you to be able to do
- Outline how an atom is built, with a positive nucleus at its centre and negative electrons circling around that nucleus
- Describe the evidence that alpha-particle scattering experiments give for: (a) a nucleus that is very small, with mostly empty space around it (b) a nucleus that holds most of the atom's mass (c) a nucleus with a positive charge