Social Sciences, asked by rizwanmohiuddin4132, 1 year ago

Calculate the average atomic mass of rubidium. rubidium has two isotopes, 85rb and 87rb. 85rb has an atomic mass of 84.912 amu and occurs at an abundance of 72.17%. 87rb has an atomic mass of 86.909 amu and occurs at an abundance of 27.83%. show your work.

Answers

Answered by singhisking3337
3
85rb : 84.912 x 0.7217 = 61.281
87rb : 86.909 x 0.2783 = 24.187
61.281 + 24.187 = 85.468 

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