Which statement is correct for any neutral atom?
The number of protons is equal to the number of electrons.
The number of protons is equal to the number of neutrons.
The nucleus has a total charge of zero.
There is always at least one neutron 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.