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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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. The following isotopes (listed with their half-lives) have been used in the medical and biologic sciences. Arrange these isotopes in order of their relative decay activities: H 3 (12.2 years), N 24 a (15 hours), I 131 (8 days), C 60 o (5.3 years). C 14 (5730 years).

Interpretation Introduction

Interpretation:

Interpret arrangement of isotope according to decay activities for C14, H3, Co60, I131, Na24.

Concept Introduction:

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

The isotope with less half-life will decay with higher rate and is more active for decay in comparison to isotope with more half-life will decay with lower rate and takes more time.

Na24 is more active for decay as it has lower half-life of 15 hr while C

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