Which statement about subatomic particles is true?

• A. Electrons have a greater mass than protons.
• B. Neutrons carry a positive charge.
• C. Protons and neutrons have approximately the same mass.
• D. Protons are found outside the nucleus.

Answer: (C)

Verified step by step guidance

1. Recall the three main subatomic particles: protons, neutrons, and electrons.
2. Understand the charges of each particle: protons are positively charged, electrons are negatively charged, and neutrons have no charge (neutral).
3. Compare the masses: protons and neutrons have masses close to 1 atomic mass unit (amu), while electrons have a much smaller mass (about 1/1836 of a proton).
4. Identify the location of each particle: protons and neutrons are located in the nucleus of the atom, while electrons orbit around the nucleus.
5. Evaluate each statement based on these facts to determine which is true.