A nuclide has the symbol 1327Al^{27}_{13}\text{Al}1327Al.
Which statement about all atoms of this nuclide is correct?
There are 27 neutrons in the nucleus.
There are 13 protons in the nucleus.
There are 13 electrons in the nucleus.
There are 40 nucleons in the nucleus.
284 exam-style questions on CIE IGCSE Physics 5.1 The nuclear model of the atom, covering 5.1.1a Structure of the atom and ions, 5.1.1b Alpha-particle scattering, 5.1.2a Composition of the nucleus and isotopes, 5.1.2b Proton number, nucleon number and nuclide notation, and 5.1.2c Nuclear fission and nuclear fusion. Each one has a worked solution and a mark scheme showing where the marks go.