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Success Criteria:
I can explain what radioisotopes are and describe the process of radioactive decay.
I can identify and differentiate between alpha, beta, and gamma radiation and describe their properties.
I can write and balance nuclear equations to represent decay processes.
I can discuss the applications of isotopes and radioisotopes in medicine, industry, and research.
Fun Fact
Radon is a naturally occurring radioactive gas that can accumulate in homes, particularly in basements and lower levels. It is produced from the decay of uranium in the soil and is considered the second leading cause of lung cancer after smoking! Because it’s colorless and odorless, regular testing is important for safety.
Key terms
Radioactive Decay: The process by which an unstable atomic nucleus loses energy by emitting radiation, resulting in the transformation into a different element or isotope.
Alpha Particle: A type of radiation consisting of two protons and two neutrons (essentially a helium nucleus), which is emitted during some types of radioactive decay.
Beta Particle: A high-energy, high-speed electron or positron emitted during radioactive decay, resulting from the conversion of a neutron into a proton or vice versa.
Gamma Radiation: High-energy electromagnetic radiation emitted from the nucleus during radioactive decay, which has no mass or charge and can penetrate materials more effectively than alpha or beta particles.
Nuclear Equation: A symbolic representation of a nuclear reaction, showing the initial and final states of the particles involved, including changes in atomic and mass numbers.
Learning Tasks
Chapter 6.2 Key Knowledge Questions p.166 of Textbook
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