Physics 9702 · AS & A Level · Mass defect and nuclear binding energy

Mass defect and nuclear binding energy — practice question

The change in binding energy per nucleon $B_E$ with nucleon number $A$ for nuclei is plotted in Fig. 8.1.

(a(i))[1]

In Fig. 8.1, indicate the approximate location of iron-56 and label it Fe.

(a(ii))[1]

In Fig. 8.1, indicate the approximate location of zirconium-97 and label it Zr.

(a(iii))[1]

In Fig. 8.1, indicate the approximate location of hydrogen-2 and label it H.

(b(i))[2]

State what is meant by nuclear fission.

(b(ii))[2]

Using Fig. 8.1, explain why fission is energetically possible.

Worked solution & mark scheme

This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Fe shown close to peak.” …