Help please
When you have two
isotopes of an atom, Carbon-12 and Carbon-13 for example, what has changed in the atomic structure?
A. Number of protons
B. Number of electrons
C. Number of neutrons
C. The number of neutrons Since Carbon 12 has 6 neutrons And carbon 13 has 7 neutrons. You know that elements have equal protons (atomic number) and electrons
