Questions and Answers
What is the definition of radioactivity?
The spontaneous breaking up of certain unstable nuclei, accompanied by the emission of radiation.
What is the main difference between isotopes of the same element?
Different mass numbers.
What is the significance of the half-life of a radioactive isotope?
It is the time taken for half the atoms in a sample of the isotope to decay.
What happens to the atomic number of an isotope when it undergoes beta emission?
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What are two examples of radioisotopes used in medicine and archaeology?
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What is the purpose of a Geiger-Muller tube?
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What is the result of alpha decay on an isotope's atomic and mass numbers?
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Who continued Henri Becquerel's pioneering work on radioactivity?
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What is an application of radioisotopes in cancer treatment?
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How do the atomic number and mass number change during beta emission?
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What is the significance of Carbon-14 in archaeology?
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What are the properties of alpha particles?
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