Which statement about the structure of a neutral atom is correct?
The nucleus is positively charged and contains almost all of the mass of the atom.
The electrons are located inside the nucleus alongside the protons.
The number of protons in a neutral atom is always equal to the number of neutrons.
The neutrons have a negative charge that balances the positive charge of the protons.
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.