A hypothetical element has three main iso- topes with mass numbers of 77, 79, and 80- If 15.00% of the isotopes have a mass number of 77 amu and 30.00% of the isotopes have a mass of 79 amu, what atomic weight should be listed on the periodic table for this element?
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A: Given data: Mass Number (A) = 92 Number of neutrons (N) = 52 Required: The atomic number (Z)
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