the number of protons in the nucleus of an atom (atomic number), determines what element it is
elements can have different isotopes
... atoms with the same number of protons, but different numbers of neutrons
carbon has 6 protons in the nucleus (and 6 electrons outside)
... carbon-13 has 7 neutrons , carbon-14 has 8 neutrons
What is the difference between carbon-13 and carbon-14?
A. the number of electrons
B. the number of neutrons
C. the number of nuclei
Please help me and explain the answer and how you got it. I'm really struggling in this class.
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