INSTRUCTION: YOUR RESPONSE TO QUESTION 1 WILL BE AN ONLINE POODLL RESPONSE WHILE THE ANSWER TO THE OTHER QUESTIONS WILL BE WRITTEN IN YOUR CHEMISTRY NOTEBOOK OR TYPED DIRECTLY ON THE SPACE PROVIDED IN THE PORTAL (ONLINE TEXT RESPONSE) FOR ONLINE/VIRTUAL STUDENTS ONLY. 1. Define the following: Decay constant Binding energy 2. A radioactive element of mass a half-life of 3yrs. Calculate the decay constant. 3. A radioactive element has a half-life of 8days. What fraction of the element will remain after 32 days? 4. If the decay constant of a radioactive element X is 0.15yr-1, determine the half-life. 5. State four uses of radioactive isotopes.
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