Question

select all of the terms that identify a part of an atom.

□ proton

□ isotope

□ nucleus

□ electron

□ molecule

Explanation:

• Proton: A subatomic particle in the nucleus of an atom, carrying a positive charge.
• Isotope: Variants of an element with different neutron numbers, not a part of an atom's structure.
• Nucleus: The central part of an atom, containing protons and neutrons.
• Electron: A subatomic particle orbiting the nucleus, carrying a negative charge.
• Molecule: A group of atoms bonded together, not a part of an atom.

So the terms identifying a part of an atom are proton, nucleus, and electron.

Answer:

A. proton, C. nucleus, D. electron