22-09-2020
Chemistry

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Help please!!?!!??!!

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urkynjaleanabh urkynjaleanabh

29-09-2020

Answer:

65.38 u

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.

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