An isotope of helium has the nuclide notation 23He^{3}_{2}\text{He}23He.
How many neutrons are in the nucleus of this isotope and what is the relative charge on the nucleus?
Number of neutrons: 111; relative charge on nucleus: +2+2+2
Number of neutrons: 111; relative charge on nucleus: +3+3+3
Number of neutrons: 222; relative charge on nucleus: +2+2+2
Number of neutrons: 222; relative charge on nucleus: +3+3+3
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.