On a mission to a newly discovered planet, an astronaut finds gallium abundances of 60.11 %% for 69Ga69Ga and 39.89 %% for 71Ga71Ga. What is the atomic mass of gallium for this location? The mass of 69Ga69Ga is 68.7200 amuamu . The mass of 71Ga71Ga is 70.9200 amuamu .

Chemistry: Matter and Change
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Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
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Chapter4: The Structure Of The Atom
Section4.3: How Atoms Differ
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On a mission to a newly discovered planet, an astronaut finds gallium abundances of 60.11 %% for 69Ga69Ga and 39.89 %% for 71Ga71Ga. What is the atomic mass of gallium for this location?

The mass of 69Ga69Ga is 68.7200 amuamu . The mass of 71Ga71Ga is 70.9200 amuamu .

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