The radius of a typical atom is approximately 1 × 10-10 m, and the radius of its nucleus is approximately 1 × 10-14 m. A science museum builds a giant scale model of this atom, representing the outer boundary of the atom (the electron cloud) with a spherical dome of radius 80 m.
Which of the following would best represent the radius of the nucleus on this same scale?
A grain of sand of radius 0.08 mm0.08\text{ mm}0.08 mm
A small insect of radius 0.8 mm0.8\text{ mm}0.8 mm
A small berry of radius 8 mm8\text{ mm}8 mm
A tennis ball of radius 8 cm8\text{ cm}8 cm
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.