Chemistry: An Introduction to General, Organic, and Biological Chemistry (12th Edition)

Published by Prentice Hall
ISBN 10: 0321908449
ISBN 13: 978-0-32190-844-5

Chapter 5 - Section 5.6 - Nuclear Fission and Fusion - Understanding the Concepts - Page 162: 5.58a

Answer

Missing thing: $^{1}_0n$ Complete nuclear equation: $^1_0n + ^{59}_{27}Co --\gt ^{56}_{25}Mn + ^4_2He$

Work Step by Step

1. Calculate the mass number of the missing atom. - The sum of the mass numbers on the right side must be equal to that on the left side. $? + 59 = 56 + 4$ $? + 59 = 60$ $? = 60 - 59$ $? = 1$ 2. Calculate the atomic number of the missing atom. - The sum of the atomic numbers on the right side must be equal to that on the left side. $? + 27 = 25 + 2$ $? + 27 = 27$ $? = 27 - 27$ $? = 0$ 3. Identify the symbol. - A thing with atomic mass equal to 1 and no protons (atomic number) is a neutron. Its symbol is "n". 4. Write the symbol with the atomic and mass numbers, and write the complete nuclear equation: $^{1}_0n$ $^1_0n + ^{59}_{27}Co --\gt ^{56}_{25}Mn + ^4_2He$
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