Question

which type of subatomic particle does not reside in the nucleus of an atom?
protons
neutrons
electrons
all of the subatomic particles listed reside in the nucleus.
none of the subatomic particles listed reside in the nucleus.

Explanation:

To solve this, we recall the structure of an atom. The nucleus of an atom contains protons (positively charged) and neutrons (neutral). Electrons (negatively charged) are located in electron clouds or orbitals surrounding the nucleus, not inside it. So we analyze each option:

• Protons: Reside in the nucleus. Eliminate this option.
• Neutrons: Reside in the nucleus. Eliminate this option.
• Electrons: Do not reside in the nucleus (they are outside, in electron shells). This is the correct option.
• "All of the subatomic particles..." is incorrect because electrons are not in the nucleus.
• "None of the subatomic particles..." is incorrect as protons and neutrons are in the nucleus.

Answer:

C. electrons