1) What is the center of an atom called? a) Nucleus b) Electron c) Proton d) Neutron 2) What charge does a proton have? a) Positive b) Negative c) Neutral d) No charge 3) Which particle orbits the nucleus? a) Electron b) Proton c) Neutron d) Nucleus 4) What is the charge of a neutron? a) Neutral b) Positive c) Negative d) No charge 5) What is the smallest unit of matter? a) Atom b) Molecule c) Compound d) Element 6) Which particle has no charge? a) Neutron b) Proton c) Electron d) Nucleus 7) What is the atomic number? a) Proton count b) Neutron count c) Electron count d) Mass number 8) Which particle determines the element? a) Proton b) Electron c) Neutron d) Nucleus 9) What is the mass number? a) Protons + Neutrons b) Protons only c) Neutrons only d) Electrons only 10) What is an isotope? a) Same protons, different neutrons b) Same neutrons, different protons c) Same electrons, different protons d) Same protons, different electrons

Atomic Structure Quiz

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