Nuclear Decay Worksheet
This worksheet covers fundamental concepts of nuclear decay, including types of radiation, half-life, and nuclear equations, suitable for Grade 9 science students.
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Standards
Topics
Nuclear Decay
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Read each question carefully and answer to the best of your ability. Show all your work for calculations.
1. Which type of nuclear radiation consists of two protons and two neutrons?
Beta particle
Gamma ray
Alpha particle
Neutron
2. The time it takes for half of the radioactive nuclei in a sample to decay is called its:
Decay constant
Half-life
Activity rate
Radiation period
1. Nuclear decay is a spontaneous process where an unstable atomic nucleus loses energy by emitting .
2. Alpha particles have a charge and consist of two protons and two neutrons.
3. Gamma rays are a form of radiation and have no mass or charge.
1. Describe the difference in penetrating power between alpha, beta, and gamma radiation.
2. Explain what is meant by the term 'half-life' in the context of radioactive decay.
1. Beta decay involves the emission of an electron or a positron.
True
False
2. Nuclear fission is the process where two light nuclei combine to form a heavier nucleus.
True
False
The image above shows a simplified diagram of a nuclear power plant. While not directly about nuclear decay, nuclear power plants utilize controlled nuclear reactions (fission) to generate electricity. This process involves the decay of heavy unstable nuclei.
