Answer
See below.
Work Step by Step
It is relatively easy to "scrape off" and exchange electrons because they are loosely bound on the outside of atoms.
Protons, on the other hand, are very tightly bound within atomic nuclei.
Conceptual Physics (12th Edition)
by Hewitt, Paul G.
Published by
Addison-Wesley
ISBN 10:
0321909100
ISBN 13:
978-0-32190-910-7
Chapter 22 - Think and Explain - Page 427-428: 49
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