shawna1989sv shawna1989sv
  • 19-02-2024
  • Chemistry
contestada

An imaginary element X consists of two isotopes having masses of 81 amu and 83 amu. A sample of X was found to contain 20.0% of the X-81 isotope and 80.0% of the X-83 isotope. What is the atomic weight of X?

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