   Chapter 30, Problem 4CQ

Chapter
Section
Textbook Problem

What two pieces of evidence allowed the first calculation of m e , the mass of the electron?(a) The ratios q e / m e and q p / m p .(b) The values of q e and E B .(c) The ratio q e / m e and q e .Justify your response.

To determine

What pieces of evidence allowed the first calculation of the mass of electron,me ? Justify the answer.

The ratiosqeme andqpmp

The values ofqe andEB

The ratioqeme andqe

Explanation

Formula Used:

The charge to mass ratio for electron was obtained from Thomson's gas discharge tube experiment.

As per the experiment, the value of

qeme ratio is1.76×1011C/kg

Also, the chare of electron was obtained from Millikan's oil drop experiment and value ofqe is1.602×1019C

Calculation:

Mass of electron can be calculated using values of charge to mass ratio and charge for electron.

me=qeqeme

We haveqeme=1.76×1011C/kg andqe=1

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

How can solar flares affect Earth?

Horizons: Exploring the Universe (MindTap Course List)

In which domain and kingdom are humans classified?

Biology: The Dynamic Science (MindTap Course List)

List some pros and cons of a low-carbohydrate diet.

Chemistry for Today: General, Organic, and Biochemistry 