Answer
electron
Work Step by Step
The initial charge must equal the final charge. The total charge on a neutron is $0$, and the total charge on a proton is $+e$. Therefore;
$0=e+q$
$q=-e$
This means that,
An electron has a charge of $-e$.
Fundamentals of Physics Extended (10th Edition)
by Halliday, David; Resnick, Robert; Walker, Jearl
Published by
Wiley
ISBN 10:
1-11823-072-8
ISBN 13:
978-1-11823-072-5
Chapter 21 - Coulomb's Law - Problems - Page 627: 36b
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