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13-08-2019
Chemistry

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Magnesium has three naturally occurring isotopes. 24Mg (isotopic mass 23.9850 arnu. abundance 78.99%). 25Mg Osotypic mass 24.9858 amu, abundance 10.00%), and 26Mg Osotopic mass 25.9826 amu, abundance 11.01%). Calculate the atomic mass of magnesium.

Respuesta :

15-08-2019

Answer:

24.3049 amu

Explanation:

Atomic mass of magnesium = percentage average of its isotopes

= 23.9850 x .7899 + 24.9858 x 0.10 + 25.9826 x .1101

= 24.3049 amu

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