A radioactive atom decays by emitting a γ\gammaγ-ray (gamma photon). Which row is correct?
| Where the decay occurs | What happens to the element's identity | |
|---|---|---|
| A | the nucleus of the atom | it remains the same element |
| B | the nucleus of the atom | it becomes a different element |
| C | the electron shells of the atom | it remains the same element |
| D | the electron shells of the atom | it becomes a different element |
Row A
Row B
Row C
Row D
120 exam-style questions on CIE IGCSE Physics 5.2.3a Radioactive decay. Each one has a worked solution and a mark scheme showing where the marks go.