   Chapter 2, Problem 9PS

Chapter
Section
Textbook Problem

From cathode ray experiments, J. J. Thomson estimated that the mass of an electron was "about a thousandth' of the mass of a proton. How accurate is that estimate? Calculate the ratio of the mass of an electron to the mass of a proton.

Interpretation Introduction

Interpretation:

The ratio of the mass of an electron to the mass of a proton has to be determined and compared with the J.J Thomson estimation of about a thousandth to the mass of a proton.

Concept introduction:

The mass of a proton is 1.672622×1024g

The mass of an electron is 9.109383×1028g

Explanation

The mass of a proton is 1.672622×1024g.

The mass of an electron is 9.109383×1028g.

Therefore,

The ratio of the mass of an electron to the mass of a proton is,

1

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