Chemistry (7th Edition)

Published by Pearson
ISBN 10: 0321943171
ISBN 13: 978-0-32194-317-0

Chapter 2 - Atoms, Molecules, and Ions - Worked Example - Page 51: 7

Answer

Number of protons: 34. Number of neutrons: 41. Number of electrons: 34.

Work Step by Step

The number of protons and electrons is equal to the atomic number (subscript one), which, in this case, is 34. The number of neutrons is equal to the mass number (superscript one), minus the atomic number: $75 - 34 = 41$
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