SAT, 29.11.2021 22:00 maaeda

The average atomic mass of fictitious element z is 261. 4 amu. Z has only 2 isotopes. One of its isotopes has an atomic mass of 260. 0 amu the other 264. 0 amu. Choose the abundance for the isotopes.

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The average atomic mass of fictitious element z is 261. 4 amu. Z has only 2 isotopes. One of its iso...

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