5. Two isotopes of rubidium occur naturally, Rubidium 85 (84.91 amu) at 72.17% and Rubidium-87 (86.91 amu) at 27.83%. Wh

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5 Two Isotopes Of Rubidium Occur Naturally Rubidium 85 84 91 Amu At 72 17 And Rubidium 87 86 91 Amu At 27 83 Wh 1 (25.36 KiB) Viewed 62 times

5. Two isotopes of rubidium occur naturally, Rubidium 85 (84.91 amu) at 72.17% and Rubidium-87 (86.91 amu) at 27.83%. What is the atomic mass of rubidium? Show all calculations that were used to find the answer. 6. Silicon has three naturally occurring isotopes with the following masses and percent abundances. Silicon 27.98 amu (92.23%), silicon 28.98 amu (4.68%) and silicon 29.97 amu (3.09%). What is the atomic mass of silicon? Show all calculations that were used to find the answer.