Problem: Suppose the element Z contains only two isotopes, 29Z (atomic mass 28.933 amu, abundance 43.03%) and 31Z (atomic mass 30.916 amu). What would be the atomic mass of Z that would appear in the periodic table?

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Suppose the element Z contains only two isotopes, 29Z (atomic mass 28.933 amu, abundance 43.03%) and 31Z (atomic mass 30.916 amu). What would be the atomic mass of Z that would appear in the periodic table?

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