Nuclear Chemistry Review
This worksheet covers fundamental concepts in nuclear chemistry, including atomic structure, radioactive decay, half-life calculations, and nuclear reactions for Grade 11 science students.
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Nuclear Chemistry Review
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Read each question carefully and provide your best answer. Show all work for calculations.
1. Which subatomic particle is primarily responsible for determining the identity of an element?
Electron
Neutron
Proton
Photon
2. What type of radioactive decay results in the emission of a helium nucleus?
Alpha decay
Beta decay
Gamma decay
Positron emission
3. The strong nuclear force holds and together in the nucleus.
4. The time it takes for half of the radioactive nuclei in a sample to decay is called its .
5. Explain the difference between nuclear fission and nuclear fusion.
6. Observe the diagram of an atomic nucleus below, then answer the questions.
a) Identify the particles represented by the red and blue spheres.
b) What force holds these particles together?
7. All isotopes of an element are radioactive.
True
False
8. A sample of Iodine-131 has an initial mass of 80 grams. If its half-life is 8 days, how much Iodine-131 will remain after 24 days?
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