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Help please!!?!!??!!

Help please!!?!!??!!-example-1
User PGilm
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1 Answer

3 votes

Answer:

65.38 u

Step-by-step explanation:

Change each percent abundance into decimal form (by dividing by 100) then multiply each by the atomic mass of it's isotope. Add together each isotope to get the average atomic mass of the element.

User Prgao
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