Carbon has three naturally occurring isotopes.
Which statement about these isotopes of carbon is correct?
All isotopes of carbon have 6 protons and 6 neutrons.
All isotopes of carbon have 6 electrons and 6 neutrons.
All isotopes of carbon have 6 protons and 6 electrons.
All isotopes of carbon have the same mass number.
77 exam-style questions on OCR GCSE Chemistry Atomic structure. Each one has a worked solution and a mark scheme showing where the marks go.