Biology 2010 Student Edition

Published by Prentice Hall
ISBN 10: 9780133669510
ISBN 13: 978-0-13366-951-0

Chapter 2, The Chemistry of Life - Assessment - 2.1 The Nature of Matter - Understand Key Concepts/Think Critically - Page 56: 2


d. compound

Work Step by Step

Symbols are merely the letter or letters that stand for an element. Isotopes are different forms of an element; isotopes have the same number of protons but differ in the number of neutrons. An element is made of the same type of atoms. Only a compound is a combination of two or more elements to form a completely different substance.
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