The radius of a typical atomic nucleus is approximately 2 × 10-15 m. The radius of a typical atom is approximately 2 × 10-10 m. A student builds a scale model of the atom. In this model, they represent the nucleus with a small marble of radius 5 mm. Which of the following would best represent the radius of the atom on this same scale?
A classroom of radius 5 m5\text{ m}5 m
A school running track of radius 50 m50\text{ m}50 m
A city park of radius 500 m500\text{ m}500 m
A national forest of radius 50 km50\text{ km}50 km
41 exam-style questions on AQA GCSE Chemistry 1.1 A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes, covering 1.1.1 Atoms, elements and compounds, 1.1.2 Mixtures, 1.1.3 The development of the model of the atom (common content with physics), 1.1.4 Relative electrical charges of subatomic particles, 1.1.5 Size and mass of atoms, 1.1.6 Relative atomic mass, and 1.1.7 Electronic structure. Each one has a worked solution and a mark scheme showing where the marks go.