AtomicMassWS - .75 x 133 .20 x 132 .05 x .|34 Totol = 99.75...

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ISOTOPES AND AVERAGE Nome ATOMIC MASS Elements come in o voriety of isotopes, meoning they ore mode up of otoms with the some otomic number but different otomic mosses, These otoms differ in the number of neutrons. The overoge otomic moss is the weighted overoge of oll the isotopes of on element. Exomple: A somple of cesium is 75% I33Cs, 207o r32Cs ond 57o ruCs. Whot is
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Unformatted text preview: .75 x 133 .20 x 132 .05 x .|34 Totol = 99.75 = 26.4 = 6.7 = 132.85 omu = oVsloge otomic moss I . BA"/" 1271, 17o/o 1261, 3o/o 1281 a _ 2, 50% reTAu;50% resAu 3. l5% 55Fe, 85% 56Fe 4, 99"/" 1H, 0.8% 2H, O,2"/" 3H 5. 95% r4N ,3%t5N, 2% 16N 6, 98"/" 12C,2o/" lac Determine the overoge otomic moss of the following mixtures of isotopes. Chemistry 1F8766 28 Dlnstructionol Foir, Inc;...
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