The structure of an atom
The structure of an atom

An atom is the smallest particle of an element. A typical atom has a radius of about 1×10−10 m1 \times 10^{-10} \, \text{m}1×10−10m and is mostly empty space.
Step-by-step lessons on AQA GCSE Physics 4.1.1 The structure of an atom. Each one builds up to exam-style questions. Build a strong grip on equations, units and Key Stage 3 fundamentals before tackling the more demanding topics like electromagnetism, the particle model of matter and space physics.