Содержание
- 2. Check your answers Atoms of elements are electrically neutral. True The mass of an electron is
- 3. Topic of the lesson The phenomenon of radioactivity. Radioisotopes. The nuclear reaction.
- 4. Learning objectives: - understand why isotopes occur and the nature of radioactivity - ability to write
- 5. Frontal questions: What is radiation? How can you prove that element is radioactive? How to determine
- 6. Look at the graph of stable elements which is commonly referred to as the Band (or
- 7. Q1. Identify the following as Alpha, beta, gamma or neutron:
- 8. Q2. Complete the following nuclear equations (the question marks)
- 9. Q3. Throium-232 undergoes radioactive decay until a stable isotope is reached. Write the nuclear reaction for
- 10. Summing up the lesson
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