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Calculate the average atomic mass of naturally occurring magnesium using the following data?IsotopeIsotopic atomic massAbundance (%)Mg2423.9978.99Mg2624.99.10Mg2525.9811.01

Answer»

Solution: Isotopes of Mg. 

Atomic mass = Mg24 = 23.99 × 78.99/100 = 18.95 

Atomic mass = Mg26 = 24.99 × 10/100 = 2.499 

Atomic mass = Mg25 = 25.98 × 11.01/100 = 2,860 

Average Atomic mass = 24.309 

Average atomic mass of Mg = 24.309



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