On a mission to a newly discovered planet, an astronaut finds gallium abundances of 60.11 % for 69 Ga and 39.89 % for 71 Ga. What is the atomic mass of gallium for this location? 69 The mass of Ga is 68.7200 amu . The mass of "Ga is 70.9200 amu . Express your answer to two decimal places, and include the appropriate units.

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Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.