JAMB Physics 2018 Paper

Concept:Natural radioactivity is the spontaneous emission of radiation from an unstable atomic nucleus.Explanation:Natural radioactive decay can release three main types of radiation.These are alpha particles ($\alpha$), beta particles ($\beta$), and gamma rays ($\gamma$).Alpha particles are helium nuclei, beta particles are fast electrons or positrons, and gamma rays are high-energy electromagnetic waves.X-rays are not emitted during natural radioactive decay.Therefore, natural radioactivity consists of all three: $\alpha$-particles, $\beta$-rays, and $\gamma$-rays.Answer:C. $\alpha$-particles, $\beta$-rays, and $\gamma$-rays