The nuclide notation for uranium-235 is 92235U^{235}_{92}\text{U}92235U.
How many electrons orbit the nucleus of a neutral atom of uranium-235?
000
929292
143143143
235235235
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.