Nester's Microbiology: A Human Perspective
Nester's Microbiology: A Human Perspective
8th Edition
ISBN: 9780073522593
Author: Denise G. Anderson Lecturer, Sarah Salm, Deborah Allen
Publisher: McGraw-Hill Education
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Chapter 2, Problem 1SA

Differentiate between an atom, a molecule, and a compound.

Expert Solution & Answer
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Summary Introduction

To review:

The differences between an atom, a molecule, and a compound.

Introduction:

The entire matter present in the universe is composed up of small particles, which are referred to as an atom. About 92 different kinds of atoms are present in nature and all these unite together in order to form different kinds of matter, which can be seen in nature.

Explanation of Solution

Atom Molecule Compound
An atom refers to a single nucleus and is surrounded by a minimum of one electron. They are made of neutrons, electrons, and protons. A molecule refers to the club of more than two or two atoms, which are bonded covalently together and form a structure. Compound refers to the term, which means the combination of two or even more than two different kinds of atoms. Most of the molecules present in nature are regarded as compounds. It can be held by a covalent bond. In ionic compounds, ionic bonds are present.
For example, Gold comprises atoms with 79 protons. For example, H2O (water) For example, NaCl (table salt)
Conclusion

Therefore, it can be concluded that an atom is the smallest unit of the matter, which makes up a molecule or a compound.

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