Grade 11 Decay Worksheet
This worksheet covers key concepts related to radioactive decay, including types of decay, half-life, and nuclear equations, suitable for Grade 11 Science students.
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Grade 11 Decay Worksheet
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Read each question carefully and answer to the best of your ability. Show all work for calculations.
1. Which type of radioactive decay results in the emission of an electron?
Alpha decay
Beta-plus decay
Beta-minus decay
Gamma decay
2. The half-life of a radioactive isotope is the time it takes for:
All of the sample to decay
Half of the sample to decay
The sample to become stable
The sample to double in mass
1. Alpha decay involves the emission of a(n) particle, which consists of two protons and two neutrons.
2. The process by which an unstable atomic nucleus loses energy by emitting radiation is known as .
3. The time required for a radioactive substance to decay to half of its initial amount is called its .
1. Write the nuclear equation for the alpha decay of Uranium-238 (U).
2. Explain the difference between nuclear fission and nuclear fusion.
1. Gamma radiation consists of high-energy electromagnetic waves and has no mass or charge.
True
False
2. The decay rate of a radioactive isotope is affected by temperature and pressure.
True
False
A sample of Iodine-131 has a half-life of 8 days. If you start with 100 grams of Iodine-131, how much will remain after 24 days?
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