AP Chemistryeasymcq1 pt
Carbon-12 and carbon-14 differ in which subatomic particle count?
A.Neutrons
B.Protons
C.Electrons
D.Protons and electrons
Explanation
Core Concept
Isotopes share a proton count (6 for carbon) but differ in neutrons: C-12 has 6, C-14 has 8. Mass number = protons + neutrons, so the label changes with neutron count.
Correct Answer
ANeutrons
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