Answered: which has more penetrating power -…

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter4: The Structure Of The Atom

Section4.4: Unstable Nuclei And Radioactive Decay

Problem 28SSC

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Question

which has more penetrating power - alpha rays or beta rays?

Expert Solution

Step 1

Penetrating power:

Each type of radiation has a different ability to penetrate materials. The material is said to have absorbed the radiation.

The energy of the three radiations is absorbed by the material through which the radiation passes. The amount of energy which is absorbed depends on the type of radiation and the type of the absorbing material.

Step 2

Alpha radiation is absorbed by the thickness of the skin or by a few centimetres of air. Beta radiation is more penetrating than alpha radiation. It can pass through the skin, but it is absorbed by a few centimetres of body tissue or a few millimetres of aluminium.

Paper Plastic Lead Concrete
Alpha
Beta
Gamma and X-rays

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