IB Physics HL E.1.2 Nuclear notation Question Bank

Practise IB Physics SL/HL E.1.2 by applying nuclear notation concepts to exam-style physics questions.

Exam points

identify the relevant physical quantity, model or diagram
apply the correct equation and units to the evidence
justify the result using conservation laws, fields or energy relationships

[Maximum number: 2]

A ball is released near the surface of the Moon at time t=0. The point of release is on a straight line between the centre of Earth and the centre of the Moon. The graph below shows the variation with time t of the displacement s of the ball from the point of release.

Figure for Question E.1.2—Nuclear notation question 1 — IB Physics HL

(a)

Radium-224 $\left({ }_{88}^{224} \mathrm{Ra}\right)$ is a radioactive nuclide that decays to form radon-220. Radon-220 is itself radioactive and undergoes a further decay. The table shows the series of radioactive nuclides that are formed as the decays proceed. The series ends with a stable isotope of lead.

For the final thallium nuclide, identify the

[ 2 ]

(i)

nucleon number.

[ 1 ]

(ii)

proton number.

[ 1 ]

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E.1.2—Nuclear notation question 1

Question (a)

Question (i)

Question (ii)