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← Topic 11 overviewTOPIC 11 ASSESSMENT

Particle physics

CIE-style questions assess scattering, nuclides, radiation, quarks, hadrons and conservation laws.

Objective question 1

Large-angle alpha scattering shows atomic positive charge is:

Objective question 2

Isotopes have the same:

Objective question 3

In β⁻ decay, the emitted lepton pair is:

Objective question 4

A baryon contains:

Objective question 5

The exchange boson for electromagnetic interaction is:

Structured question 1

A nuclide has nucleon number 210 and proton number 84. Calculate its neutron number.

Structured question 2

Calculate the charge in units of e of a particle with quark composition uud.

Structured question 3

An electron and positron annihilate from rest. Calculate the total photon energy in MeV, using electron rest energy 0.511 MeV.