WGU (MTC1) Integrated Physical Sciences Exam - Topic 3 Question 1 Discussion

Actual exam question for WGU's WGU (MTC1) Integrated Physical Sciences exam

Question #: 1
Topic #: 3

[All WGU (MTC1) Integrated Physical Sciences Questions]

The model above represents the parts of an atom. What type of particle is B?

AIon

BElectron

CProton

DNeutron

Show Suggested Answer

Suggested Answer: B

Understanding Atomic Structure: An atom consists of a nucleus made up of protons and neutrons, surrounded by electrons that orbit the nucleus.

Identifying Particles:

Protons (C): Positively charged particles located in the nucleus.

Neutrons (D): Neutral particles located in the nucleus.

Electrons (B): Negatively charged particles that orbit the nucleus in electron shells.

Ions (A): Atoms or molecules that have gained or lost one or more electrons, giving them a net charge.

Analyzing the Model: In atomic models, the particle labeled 'B' is typically shown in the electron shell or orbit around the nucleus, indicating it is an electron.

Conclusion: Particle 'B' is an electron.

Basic Atomic Structure: Fundamental concepts of atomic particles and their locations.

by Edelmira at Nov 23, 2025, 12:56 AM

Limited Time Offer

25%

Off

Get Premium WGU (MTC1) Integrated Physical Sciences Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Sheridan

14 hours ago

Wait, are we sure? Could it be a proton?

upvoted 0 times

...

Cherry

6 days ago

Totally agree, it's the only option that makes sense.

upvoted 0 times

...

Ira

11 days ago

Hmm, I'm torn between B and C. Guess I'll just go with my gut and pick the electron.

upvoted 0 times

...

Rosio

16 days ago

B, the electron, no doubt. Gotta love these basic atom questions.

upvoted 0 times

...

Merilyn

21 days ago

Haha, this is easy. It's obviously D, the neutron. What else could it be?

upvoted 0 times

...

Sue

26 days ago

I'm going with C, the proton. The model clearly shows the central core of the atom.

upvoted 0 times

...

Celestina

1 month ago

Definitely B, the electron. That's the only particle that fits the description.

upvoted 0 times

...

Serina

1 month ago

I feel confident that B is an electron. The image looks like it shows the electron cloud around the nucleus.

upvoted 0 times

...

Joesph

1 month ago

I'm a bit confused because I can't remember if B could also be a proton. I need to double-check my notes.

upvoted 0 times

...

Ligia

2 months ago

I've got this! B is definitely the electron. The diagram clearly shows the different particles that make up an atom, and the electron is one of the key components, so that has to be the answer.

upvoted 0 times

...

Aleshia

2 months ago

I'm a bit confused by this question. The diagram shows the parts of an atom, but I'm not sure which one corresponds to B. I'll have to review my notes on atomic structure to figure this out.

upvoted 0 times

...

Madelyn

2 months ago

Okay, based on the diagram, I'm pretty sure B is the electron. The electron is one of the main components of an atom, so that seems like the most likely answer.

upvoted 0 times

...

Flo

2 months ago

I practiced a similar question last week, and I think B definitely refers to an electron.

upvoted 0 times

...

Reynalda

2 months ago

I think B is an electron, but I'm not completely sure. I remember electrons are negatively charged.

upvoted 0 times

...

Serina

2 months ago

B is definitely an electron!

upvoted 0 times

...

Deandrea

3 months ago

I think B is an electron.

upvoted 0 times

...

Marlon

3 months ago

Yeah, electrons are negative.

upvoted 0 times

...

Sage

3 months ago

Hmm, I'm not totally sure about this one. The diagram looks like it's showing the structure of an atom, but I'm not confident which particle B represents. I'll have to think this through carefully.

upvoted 0 times

...

Joana

3 months ago

I think B is the electron, since the diagram shows the different parts of an atom and the electron is one of the key particles.

upvoted 0 times

...