Chapter 4, Problem 2STP

Interpretation Introduction

Interpretation : The incorrect description is to be identified.

Concept Introduction : Protons, neutrons, and electrons are the three different types of subatomic particles.

Answer to Problem 2STP

The description that is electron: negative charge, the mass of 0 amu, in the nucleus is incorrect. Option (B) is the correct answer.

Explanation of Solution

Reason for correct option:Protons, neutrons, and electrons are the three different types of subatomic particles.

Electrons are negatively charged subatomic particles that revolve around the nucleus discovered by J. J. Thomson.

But in the given description, electrons are in the nucleus.

So, the description is incorrect.

Hence, option (B) is the correct answer.

Conclusion

Reasons for incorrect options:The positively charged subatomic particles known as protons were first found in the nucleus by Eugen Goldstein.

James Chadwick first identified the neutrally charged subatomic particles known as neutrons as being present in the nucleus.

The mass of protons and neutrons is 1 amu.

Both the descriptions of options (A) and (C) are correct.