[amp_mcq option1=”protons (alpha particles)” option2=”electrons (beta particles)” option3=”gamma rays (short wave electromagnetic waves)” option4=”All of the above” correct=”option4″]
The correct answer is: D. All of the above.
Radioactivity is the process by which an unstable atomic nucleus loses energy by radiation. This radiation can take the form of alpha particles, beta particles, or gamma rays.
Alpha particles are positively charged particles that are made up of two protons and two neutrons. They are relatively large and slow-moving, and they can be stopped by a sheet of paper.
Beta particles are negatively charged particles that are made up of electrons. They are smaller and faster than alpha particles, and they can be stopped by a thin sheet of metal.
Gamma rays are high-energy photons that are similar to light. They are very small and have a very high penetrating power. They can be stopped by thick layers of lead or concrete.
Radioactivity is a natural phenomenon that occurs in all elements. It is also used in a variety of applications, such as nuclear power generation, medical imaging, and industrial radiography.