Atoms, nuclei and radiation — practice question

One particular nuclide, uranium-235, has nucleon number $235$, proton number $92$ and neutron number $143$. Information about four other nuclides is shown below. Which nuclide is an isotope of uranium-235?

• Anucleon number $235$, proton number $91$, neutron number $144$
• Bnucleon number $236$, proton number $92$, neutron number $144$
• Cnucleon number $237$, proton number $94$, neutron number $143$
• Dnucleon number $238$, proton number $95$, neutron number $143$