Carbon-14 (614C^{14}_{6}\text{C}614C) is radioactive.
Name three types of nuclear radiation emitted from radioactive sources.
State which of these radiations:
(i) carries a positive charge,
(ii) is the most penetrating,
(iii) is the emitted particle in the decay
614C⟶714N+emitted particle ^{14}_{6}\text{C} \longrightarrow {}^{14}_{7}\text{N} + \text{emitted particle} 614C⟶714N+emitted particleCarbon-14 has a half-life of 5730 years5730\text{ years}5730 years.
A sample containing 4 × 1010 atoms of carbon-14 decays for 17,190 years17,190\text{ years}17,190 years.
(i) How many half-lives elapse in this time?
(ii) How many atoms decay in this time?
(iii) How many beta particles are emitted from the carbon-14 sample during this time?
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.