Below are the symbols for five different nuclides:
614X714X715X816X919Xnuclide 1nuclide 2nuclide 3nuclide 4nuclide 5 \begin{array}{ccccc} ^{14}_{6}\text{X} & ^{14}_{7}\text{X} & ^{15}_{7}\text{X} & ^{16}_{8}\text{X} & ^{19}_{9}\text{X} \\ \text{nuclide 1} & \text{nuclide 2} & \text{nuclide 3} & \text{nuclide 4} & \text{nuclide 5} \end{array} 614Xnuclide 1714Xnuclide 2715Xnuclide 3816Xnuclide 4919Xnuclide 5Which two nuclides are isotopes of the same element?
nuclide 1 and nuclide 2
nuclide 2 and nuclide 3
nuclide 3 and nuclide 4
nuclide 4 and nuclide 5
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.