World of Chemistry, 3rd edition
World of Chemistry, 3rd edition
3rd Edition
ISBN: 9781133109655
Author: Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Publisher: Brooks / Cole / Cengage Learning
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Chapter 2, Problem 2A
Interpretation Introduction

Interpretation: The invisibility of atoms through naked eye needs to be explained.

Concept introduction: Atoms are the basic units of matter and the defining structure of elements. Atoms consist of a nucleus made of protons and neutrons orbited by electrons.

Expert Solution & Answer
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Answer to Problem 2A

Due to small size of atom, it cannot be seen by naked eyes.

Explanation of Solution

Atoms generally have a diameter of about 0.1 to 0.3 nm ( 1nm=109m ). Our eyes can’t resolve any thing which is below about a tenth of millimeter ( 1mm=103m ). One can’t see an atom even with most powerful microscope.

Conclusion

Thus, due to small size of atom, it cannot be seen by naked eyes.

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