A fluorine atom can be represented as:
919F ^{19}_{9}\text{F} 919FHow many protons, neutrons, and electrons are in this fluorine atom?
9 protons, 10 neutrons, 9 electrons
9 protons, 9 neutrons, 10 electrons
10 protons, 10 neutrons, 9 electrons
10 protons, 9 neutrons, 9 electrons
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.