Answer
c) Na
Work Step by Step
With a mass number of 23 and 12 neutrons, the atom must have 11 protons. This means the element is Sodium.
Chemistry and Chemical Reactivity (9th Edition)
by Kotz, John C.; Treichel, Paul M.; Townsend, John R.; Treichel, David A.
Published by
Cengage Learning
ISBN 10:
1133949649
ISBN 13:
978-1-13394-964-0
Chapter 2 Atoms, Molecules, and Ions - 2-3 Isotopes - Review & Check for Section 2-3 - Page 50: 2
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