General, Organic, and Biological Chemistry: Structures of Life (5th Edition)

Published by Pearson
ISBN 10: 0321967461
ISBN 13: 978-0-32196-746-6

Chapter 4 - Atoms - Additional Questions and Problems: 4.110

Answer

a) True b) True c) False d) False e) False

Work Step by Step

a) True. Neutron are electrically neutral. b) True. Protons and neutrons have mass. Electrons have almost no mass, and thus, they are not included in atomic mass of an atom. c) False. The charge of an electron (e$^-$) is equal, but opposite the charge of a proton (p$^+$), not a neutron (n$^0$), which is neutral. d) False. Electrons have almost NO mass, and are not included in the calculation of the mass of an atom. e) False. The mass number of an atom is the number of protons PLUS the number of neutrons.
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