Chapter 02 – The Molecules of Cells
Copyright © 2017 McGraw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of
The Molecules of Cells
Multiple Choice Questions
1. The two isotopes shown below differ in the number of
D. carbon atoms.
E. ionic bonds.
Carbon 12 and carbon 14 are different isotopes of the element carbon; this means they have
the same number of protons and electrons, but they differ in the number of neutrons. The
number of bonds an isotope can form is not determined by its neutrons.
Bloom’s Level: 1. Remember
Learning Outcome: 02.01.03 Describe how variations in an atomic nucleus account for its physical properties.
Topic: Atomic Structure