Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext
Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext
11th Edition
ISBN: 9781488687075
Author: Lisa, A. Urry
Publisher: PEARSON
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Chapter 2, Problem 2.1CR

Compare an element and a Compound.

Expert Solution & Answer
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Summary Introduction

To explain: The difference between a compound and an element.

Introduction: All organisms are composed of matter, which is defined as anything that has mass and occupies space. All matter is made up of one or more chemical elements. An element cannot be further broken down into other chemical substances. When two or more elements combine to form a chemical substance in a fixed ratio, it is called a compound.

Explanation of Solution

Differences between chemical elements and compounds:

An element is the smallest unit of matter. It cannot be further broken down into other chemical substances.

Element Compound
(i.) It is the made up of only the same type of atoms It is made up of two or more different elements combined in a fixed ratio.
(ii.) It cannot be divided into other chemical substances It can be broken down into its constituent elements
(iii.) 92 naturally-occurring elements have been identified The number of compounds occurring in nature or synthesized by man is uncountable
(iv.) Represented by a chemical symbol A compound is depicted by writing the symbols of elements from which it is made and their combining ratio
(v.) Examples: Carbon (C), Oxygen (O), Nitrogen (N), Sodium (Na), Hydrogen (H) Example: Water (H2O), glucose (C6H12O6), Common Salt (NaCl), Ammonia (NH3)

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