Carbon has an atomic number of 6.
Carbon-13 is an atom of carbon with a mass number of 13.
State the number of protons in a carbon-13 atom.
Calculate the number of neutrons in a carbon-13 atom.
Carbon-12 and carbon-13 are isotopes of carbon.
Give one difference between an atom of carbon-12 and an atom of carbon-13.
93 exam-style questions on AQA GCSE Chemistry 1.1 A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes, covering 1.1.1a Atoms, elements and compounds, 1.1.1b Half equations and ionic equations, 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.