A random and spontaneous disintegration (decay) of unstable nucleus in order to become stable.
Key Terms of Radioactivity

Quiz
•
Physics
•
10th Grade
•
Medium

Kery Lin
Used 4+ times
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10 questions
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1.
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1 min • 1 pt
2.
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1 min • 1 pt
We cannot predict which one among the unstable nuclei will decay at a certain time
3.
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1 min • 1 pt
Contains more energy than ‘needed’ or the nucleus is just too big, too many protons or neutrons
4.
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1 min • 1 pt
A measure of the level of ionizing radiation present in the environment without any deliberate radiation sources.
5.
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1 min • 1 pt
The process that unstable isotopes release different types of particles to become stable.
6.
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The elements which undergo the decay.
7.
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1 min • 1 pt
The ability of each type of radiation to pass through matter
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