AnswersChemistryTypes of Radioactive Decay — QuizQuestion 11
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Types of Radioactive Decay — Quiz

Question 11 • Chemistry

Consider the table that summarizes the types of materials that can block the 3 different types of radiation. Material 1 2 3 Lead Stopped Stopped Stopped Cloth Not stopped Stopped Stopped Aluminum foil Not stopped Stopped Stopped Wood Not stopped Stopped Stopped Paper Not stopped Stopped Not stopped Thick concrete Stopped Stopped Stopped Based on the table, at which numbered spot in the table does each type of radiation belong?

Answer
A
1 is equal to beta ; 2 is equal to gamma , 3 is equal to alpha
B
1 is equal to beta ; 2 is equal to alpha , 3 is equal to gamma
C
1 is equal to gamma ; 2 is equal to alpha , 3 is equal to beta
D
1 is equal to alpha ; 2 is equal to beta , 3 is equal to gamma

Explanation

Alpha radiation is stopped by paper, so it matches column 2, which says paper stops it. Beta radiation is not stopped by paper but is stopped by materials such as aluminum foil, matching column 3. Gamma radiation passes through paper, wood, and aluminum foil but is stopped by lead or thick concrete, matching column 1. Therefore, 1 is gamma, 2 is alpha, and 3 is beta.

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