The naturally occurring isotopes of magnesium are magnesium-24. magnesium-25, and magnesium-26. Magnesium-24 has an abundance of 78.994% and a mass of 23.985 amu. Magnesium-25 has an abundance of 10.001% and a mass of 24.986 amu. Magnesium-26 has an abundance of 11.013% and a mass of 25.983 amu. Calculate the average atomic mass of magnesium.
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