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Rubidium has two naturally occurring isotopes with the following masses and natural abundances:
Isotope Mass AbundanceRb-86 85.9118 72.15Rb-87 86.9092 27.85
Calculate the atomic weight of rubidium. Please explain in details.
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The atomic masses of Lithium-6 (7.59%) and Lithium-7 (92.41%) are 6.0151 and 7.016 amu, respectively. Calculate the average atomic mass of chlorine. The percentages in parentheses denote the relative abundances.
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