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2. Carbon is a nonmetal element that has two stable, naturallyoccurring isotopes called carbon-12 (^12C) and carbon-13 (^13C).The isotope carbon-12 (^12C) has an atomic mass of 12.000 amu,while the isotope carbon-13 (^13 C) has an atomic mass of 13.003amu. Find the approximate natural abundances of carbon-12 (^12C)and carbon-13 (^13 C).

Carbon-12 Carbon-13

a) 99.0 % 1.00 %
b) 50.0 % 50.0 %
c) 70.4 % 29.6 %
d) 1.50 % 98.5 %


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5 Nov 2019

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