Physics Technology Update (4th Edition)

Published by Pearson
ISBN 10: 0-32190-308-0
ISBN 13: 978-0-32190-308-2

Chapter 32 - Nuclear Physics and Nuclear Radiation - Problems and Conceptual Exercises - Page 1152: 14

Answer

a) unchanged radius b) statement 3

Work Step by Step

(a) We know that the radius of the daughter nucleus is the same as that of the original nucleus because the daughter nucleus has the same number of nucleons as contained in the original nucleus. (b) We know that the best explanation is statement 3 -- that is, when a nucleus emits a beta particle, a neutron is converted to a proton but the number of nucleons is unchanged (and as a result, the radius of the daughter nucleus is the same as that of the original nucleus).
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