Chapter 4.1, Problem 3LC

Interpretation Introduction

Interpretation : The instrument used to observe individual atoms is to be identified.

Concept Introduction : The smallest component of an element that maintains its identity during a chemical reaction is called an atom.

Answer to Problem 3LC

The individual atoms can be observed using a scanning electron microscope instrument.

Explanation of Solution

Most atoms have radii between $5\times {10}^{-11}\text{m}$ to $2\times {10}^{-10}\text{m}$ .

Even though atoms are tiny, individual atoms can be seen using tools like a scanning electron microscope.

A beam of electrons is focused on the sample in a scanning electron microscope.

Compared to optical microscopes, electron microscopes can achieve far higher magnifications.

Individual atoms can even be moved around and organized in patterns with the aid of an electron microscope.