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Q. |
A radioactive substance emits? |
A. | alpha particle |
B. | beta particle |
C. | gamma particle |
D. | all of the three |
Answer» D. all of the three | |
Explanation: Radioactive substances are continually producing three kinds of dangerous radiation: alpha particles, beta particles and gamma rays. These types of radiation are invisible to the naked eye, and so you won't see a green glow. |
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