In this chapter, we will learn about the history of the discovery of radioactivity. We will explore the concept of radioactive materials and the phenomenon of radioactivity, as well as the concept of half-life. We will also study the structure of an atom and its nucleus, including the formation of positive and negative ions.
Furthermore, we will discuss the difference between ionising radiation and non-ionising radiation. We will learn about the three types of ionising radiation in radioactive decay. Additionally, we will examine the various uses of radioactive radiation for the well-being of society.
Lastly, we will understand the importance of proper handling of radioactive substances and radioactive waste. It is crucial to ensure safety and prevent any harmful effects.
• Describe the history of the discovery of radioactivity
• Explain with examples radioactive materials, radioactivity and the concept of half-life
• Draw an atomic structure in a stable state
• Explain the formation of positive ions and negative ions
• Describe ionising radiation and nonionising radiation
• Differentiate the three types of ionising radiation in radioactive decay
• Explain with examples sources of ionising radiation in the environment, natural resources and man-made sources
• Discuss ways to manage the risks from exposure to natural and man made ionising radiation
• Communicate about the use of radioactive radiation for well being
• Justify the importance of proper handling of radioactive substances and radioactive waste
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