Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 2 - Atoms, Molecules, and Ions - Exercises: 2.21d

Answer

The neutron is the most massive.

Work Step by Step

The mass of a proton is about 1.672623 x 10-27 kg, the mass of a neutron about 1.674929 x 10-27 kg and that of the electron 9.109390 x 10-31 kg. Therefore, the most massive is the neutron.
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