| radioactive spill |
A release of radioactive materials into the environment.
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| radioactive tag |
A radioactive isotope that is incorporated into a chemical or organic material to allow its detection in metabolic or chemical processes. SYN: radiolabel.
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| radioactive isotope |
An isotope of an element that has an unstable nucleus; it tries to stabilize itself by giving off ionizing radiation.
출처: www.scienceteacher.org/k12resources/lessons/lesson...
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