A nucleus of element Y is represented as 1735Y{}^{35}_{17}\text{Y}1735Y.
Which of the following is an isotope of element Y?
3517Y{}^{17}_{35}\text{Y}3517Y
1535Y{}^{35}_{15}\text{Y}1535Y
1737Y{}^{37}_{17}\text{Y}1737Y
1537Y{}^{37}_{15}\text{Y}1537Y
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.