   Chapter 12, Problem 13CR ### Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425

#### Solutions

Chapter
Section ### Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem
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# What is electronegative radiation? Give some examples of such radiation. Explain what the wavelength ( λ ) and frequency (v) of electronegative radiation represent. Sketch a representation of a wave and indicate on your drawing one wavelength of the wave. At what speed does electromagnetic radiation move through space? How is this speed related to λ and v?

Interpretation Introduction

Interpretation:

The meaning of electromagnetic radiation with example is to be stated. The explanation corresponding to the representation of wavelength and frequency of electromagnetic radiation is to be stated. The sketch for the representation of a wave that indicates one wavelength of the wave is to be drawn. The speed at which electromagnetic radiation moves through the space is to be stated. The relationship of the speed of electromagnetic radiation with λ and ν is to be stated.

Concept Introduction:

Electromagnetic radiation corresponds to the waves of electromagnetic field which radiates through space, possessing electromagnetic radiant energy. Light is said to be an electromagnetic ray and is responsible for vision. The more the resistance the particles get in the medium, the more will be the slower the speed of light. This resistance is measured by term known as refractive index.

Explanation

The electromagnetic radiations are actually the waves that resides in the electromagnetic field and which are radiated though the space. These waves also carry radiant energy with them. The examples of electromagnetic radiations or electromagnetic waves are microwaves, infrared waves, visible light, ultraviolet, X-rays and gamma rays.

As, an electromagnetic wave possesses successive troughs and crests, thus, the wavelength (λ) of the electromagnetic represents the total distance between either the two adjacent troughs or the two adjacent crests as shown in Figure 1.

The representation of frequency (ν) is used to determine the total number of waves that passes through a single point per second. The unit of frequency is Hertz.

The speed of electromagnetic radiation, c at which it moves through the space is 3×108m/s.

The sketch for the representation of a wave that indicates one wavelength of the wave is shown as,

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