Chapter 4, Problem 43A

Arrange the following subatomic particles in order of increasing mass: neutron, electron, and proton.

Interpretation Introduction

Interpretation:

The subatomic particles, neutrons, electron and proton needs to be arranged in increasing order of their mass.

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 43A

$electron<proton=neutron$ is the increasing order of the masses of subatomic particles.

Explanation of Solution

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

Electron cloud: Electron is a negatively charged subatomic particle that surrounds the nucleus in clusters. An electron is $9.10\times {10}^{-31}kg$ in mass.

Protons: Protons are positively charged subatomic particle present inside the nucleus. A proton is $1.67\times {10}^{-27}kg$ in mass.

Neutrons: Neutrons are zero charged subatomic particles present inside the nucleus along with protons. A neutron is also

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

Therefore, $electron<proton=neutron$ as $9.10\times {10}^{-31}kg<1.67\times {10}^{-27}kg=1.67\times {10}^{-27}kg$

Conclusion

Hence, the subatomic particles in increasing order of their masses are $electron<proton=neutron$.