Isotope abundances of gallium. Add your answer and earn points. 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. Calculate the atomic mass of gallium, symbol Ga. Gallium has two isotopes: Ga-69 and Ga-71. Gallium-71 Information. Gallium compounds, some of which form the basis for light-emitting diodes (LEDs), have valuable semiconductor and optoelectronic properties. 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. 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, chemical element of Group 13 (the boron group) of the periodic table. The atomic mass is the mass of an atom. It liquefies just above room temperature. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images. ››More information on molar mass and molecular weight. 69Ga has a relative abundance of 60.12% and an atomic mass of 68.9257 amu. 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 metal and thus has similarities to the other metals of the group, aluminum, indium and thallium. Finally, the result makes sense because the average atomic mass of gallium is closer to the lighter isotope, #""^69Ga#, than it is to the heavier one, #""^71Ga#, so a 60-40 split between the two matches this difference. There are thirty-one isotopes of gallium and their atomic mass range from 56 to 86. Calculate the atomic mass of gallium. Show work Related questions. 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. Gallium is not a biologically significant element. Gallium is a chemical element with atomic number 31. There are two natural isotopes of gallium… Atomic mass of Gallium is 69.723 u. Gallium has two isotopes:69Ga and 71Ga. The relative abundance of Ga-69 is 60.12% and its atomic mass is 68.9257 amu. 71Ga has a relative abundance of 39.88% and an atomic mass of 70.9249 amu. This is not to be confused with the relative percentage isotope abundances which totals 100% for all the naturally occurring isotopes. Know the Chemical Properties of Gallium, Gallium Uses, Atomic Mass, Melting Point and more at BYJU'S Gallium has 31 isotopes. It is a non-toxic element. Element Gallium (Ga), Group 13, Atomic Number 31, p-block, Mass 69.723. 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