Which of the following is correct concerning subatomic particles?

• A. Neutrons have a negative charge and are found outside the nucleus.
• B. Electrons have a positive charge and are found in the nucleus.
• C. Protons and electrons have the same mass.
• D. Protons have a positive charge and are found in the nucleus.

Answer: (D)

Verified step by step guidance

1. Recall the three main subatomic particles: protons, neutrons, and electrons.
2. Understand the charge and location of each particle: Protons have a positive charge and are located in the nucleus; neutrons have no charge (neutral) and are also in the nucleus; electrons have a negative charge and orbit the nucleus.
3. Compare the masses: Protons and neutrons have similar masses, which are much larger than the mass of electrons.
4. Evaluate each statement based on these facts: Neutrons do not have a negative charge and are not found outside the nucleus; electrons do not have a positive charge and are not found in the nucleus; protons and electrons do not have the same mass.
5. Conclude that the correct statement is that protons have a positive charge and are found in the nucleus.