The nucleus of an isotope of nitrogen, N\text{N}N, absorbs an α\alphaα-particle. It then decays into an isotope of oxygen, O\text{O}O, and emits x\text{x}x.
24He+714N→817O+x {}^{4}_{2}\text{He} + {}^{14}_{7}\text{N} \rightarrow {}^{17}_{8}\text{O} + \text{x} 24He+714N→817O+xWhat is x\text{x}x?
α\alphaα-particle
β−\beta^-β−-particle
neutron
proton
170 exam-style questions on CIE IGCSE Physics 5.1.2a Composition of the nucleus and isotopes. Each one has a worked solution and a mark scheme showing where the marks go.