The Three Naturally Occurring Isotopes of Magnesium Are 24Mg (23

question 13

Multiple Choice

The three naturally occurring isotopes of magnesium are 24Mg (23.985042 u, 78.99%) , 25Mg (24.985837, 10.00%) , and 26Mg. What is the atomic mass of 26Mg?

• A) 25.98 u
• B) 48.67 u
• C) 23.94 u
• D) 26.43 u
• E) 24.31 u

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