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Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425

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BuyFindarrow_forward

Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem
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. Consider the isotopes of radium listed in Table 19.3. Which isotope is most stable against decay? Which isotope is “hottest”?

Interpretation Introduction

Interpretation:

Interpret stable and hotter isotope of radium.

Concept Introduction:

The decaying of an atom takes place by three type of decay such as alpha decay, beta decay, gama decay.

In alpha decay, an alpha particle with mass 4m and electron 2e removed from nuclide while in beta decay two type of decay are possible beta (+) and beta (-). In gamma decay, nuclide will remain same to the original one.

Explanation

8 7 Ra226 is most stable isotope of radium having stable noble gas configuration. It consist of 87 proton and 226 atomic mass.

8 8 Ra226 is the hottest isotope and consist of 88 proton and 226 atomic mass. It undergoes beta (+) decay to produce 8 7 Ra226 as follows:

88

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