General Chemistry (4th Edition)

Published by University Science Books
ISBN 10: 1891389602
ISBN 13: 978-1-89138-960-3

Chapter 2 Atoms and Molecules - Problems - Page 74: 42

Answer

(a) phosphorus-30 15 protons, 15 electrons, 15 neutrons (b) technetium-97 43 protons, 43 electrons, 54 neutrons (c) iron-55 26 protons, 26 electrons, 29 neutrons (d) americium-240 95 protons, 95 electrons, 145 neutrons

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