It is a non-toxic element. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images. Gallium is a soft, silvery metal and thus has similarities to the other metals of the group, aluminum, indium and thallium. Answer link. The relative abundance of Ga-69 is 60.12% and its atomic mass is 68.9257 amu. Calculate the atomic mass of gallium. Gallium has 31 isotopes. Gallium, chemical element of Group 13 (the boron group) of the periodic table. Calculate the atomic mass of gallium, symbol Ga. Gallium has two isotopes: Ga-69 and Ga-71. The atomic mass is the mass of an atom. Add your answer and earn points. Gallium-71 Information. Know the Chemical Properties of Gallium, Gallium Uses, Atomic Mass, Melting Point and more at BYJU'S In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all … Atomic mass of Gallium is 69.723 u. Gallium is a chemical element with atomic number 31. ››More information on molar mass and molecular weight. Atomic Mass of Gallium. There are two natural isotopes of gallium… This is not to be confused with the relative percentage isotope abundances which totals 100% for all the naturally occurring isotopes. Isotope abundances of gallium. 71Ga has a relative abundance of 39.88% and an atomic mass of 70.9249 amu. Related questions. There are thirty-one isotopes of gallium and their atomic mass range from 56 to 86. Gallium has two isotopes:69Ga and 71Ga. The relative abundance of Ga-71 is 39.88% and its atomic mass is 70.9249 amu See answer kernando5683 is waiting for your help. Show work In the above, the most intense ion is set to 100% since this corresponds best to the output from a mass spectrometer. Gallium is a soft silvery metallic element, belongs to group 13 of the periodic table. Gallium is an element in the thirteenth group and fourth period of periodic table and it has the symbol Ga and atomic number 31. Gallium is also a non-radioactive metal. 69Ga has a relative abundance of 60.12% and an atomic mass of 68.9257 amu. The atomic mass or relative isotopic mass refers to the mass of a single particle, and therefore is tied to a certain specific isotope of an element. Gallium is not a biologically significant element. Isotopes of Gallium. 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