Alpha (α\alphaα), beta (β\betaβ), and gamma (γ\gammaγ) radiation have different properties.
Identify which of these three types of radiation matches each of the following descriptions:
A sample of radioactive material contains 120 mg120\text{ mg}120 mg of cobalt-60. The half-life of cobalt-60 is 5.3 years5.3\text{ years}5.3 years.
Calculate the mass of cobalt-60 remaining in the sample after 21.2 years21.2\text{ years}21.2 years.
134 exam-style questions on CIE IGCSE Physics 5.2.2a Alpha, beta and gamma emission. Each one has a worked solution and a mark scheme showing where the marks go.