Element X has two naturally occurring isotopes . Its first isotope has a mass of 28.0 amu and a natural abundance of 64.24%. Its second isotope has a mass of 25.0 amu. What is the atomic mass of element X?

Answer:

5.6⋅10−^19  j

do you need the explaination?

Answers are 1,2,4 its correct on edgenuity.

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