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1) Define Isotope:
2) Show the three ways of writing the symbolic representation of an isotope (use Carbon-13).
3) How many protons, electrons and neutrons are in a Carbon-13 isotope?
4) Define atomic mass.
5) If an atom has 2 isotopes and one (call it X-21) has a percent abundance of 95.5% and other (call it X-23) has a percent abundance of 4.5%. Would the atomic mass be CLOSER TO X-21 actual mass, or CLOSER TO X-23 actual mass or ABOUT IN MIDDLE OF BOTH? Explain your answer.
6) Using the isotope information table (from your notes) and the blank table, show the calculations for