A nuclide is represented by the symbol TSX{}^{S}_{T}\text{X}TSX.
How many neutrons are in one nucleus of this nuclide?
SSS
TTT
S+TS + TS+T
S−TS - TS−T
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.