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25 June, 19:14

A new element - - quickly named Reachium by the scientific community - - is discovered. This element is found to have

two isotopes. 86.4% of all Reachium atoms are Reachium-328 and 13.6% are Reachium-333. What is the atomic mass of

this element?

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  1. 25 June, 20:05
    0
    (.864x328) + (.136x333)

    283.392 + 45.288

    =328.62g
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