Question

which two subatomic particles cant be subdivided any more than they already are? (select 2 answers)
atom
nucleus
electron
quark
neutron
proton

Explanation:

To solve this, we analyze each option:

• Atom: Not a subatomic particle (it's the basic unit of matter, composed of subatomic particles), so eliminate.
• Nucleus: A structure (composed of protons/neutrons), not a subatomic particle, so eliminate.
• Electron: A fundamental particle (lepton), cannot be subdivided further.
• Quark: A fundamental particle, cannot be subdivided further.
• Neutron/Proton: Composed of quarks, so they can be subdivided (into quarks), so eliminate.

Thus, the two subatomic particles that can’t be subdivided are Electron and Quark.

Answer:

C. Electron, D. Quark