Chapter 4, Problem 47A

Interpretation Introduction

Interpretation:

Total number of electrons required to weigh 1 proton on a weigh scale needs to be determined.

Concept introduction:

The smallest particle of an element that can neither be created nor be destroyed is known as an atom. It consists of three particles: electrons, protons and neutrons.

Answer to Problem 47A

Hence, to measure 1 proton, total 1873 electron are required on a weighscale.

Explanation of Solution

Mass is the most basic property of matter. It is a measure of the amount of matter present in body. Its SI unit is Kilogram.

An electron is $9.10\times {10}^{-31}kg$ in mass.

A proton is $1.67\times {10}^{-27}kg$ in mass.

Therefore, $\frac{1electron}{9.1\times {10}^{-31}kg}\times \frac{1.673\times {10}^{-27}kg}{1proton}=\frac{1873electrons}{1proton}$

Hence, to measure 1 proton, total 1873 electron are required on a weighscale.

Conclusion

Hence, 1873 electrons are required on a weigh scale to measure 1 proton.