Fundamentals of Physics Extended (10th Edition)

Published by Wiley
ISBN 10: 1-11823-072-8
ISBN 13: 978-1-11823-072-5

Chapter 42 - Nuclear Physics - Problems - Page 1305: 52b

Answer

$Q_1 = 5.98 MeV$

Work Step by Step

For the second reaction, $^{223}Ra \longrightarrow ^{219}Rn + ^{4}He $ $Q_1 = (m_{Ra} - m_{Rn} - m_{He}) c^2$ $Q_1 = (223.01850u - 219.00948u - 4.00260 u) (931.5 MeV/u) $ $Q_1 = 5.98 MeV$
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