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1. Rubidium is a soft, silvery-white metal that has two common isotopes, 35Rb and Rb. The atomic mass of 84.911789 amu (72.17%), and Rb has an atomic mass of 86.909183 amu (27.38%). What is the average
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1. Rubidium is a soft, silvery-white metal that has two common isotopes, 35Rb and Rb. The atomic mass of

84.911789 amu (72.17%), and Rb has an atomic mass of 86.909183 amu (27.38%). What is the average
atomic mass of Rubidium?

User Inquirer
by
4.4k points

1 Answer

8 votes

Answer:

85.076572

Step-by-step explanation:

= (84.911789×0.7217) + (86.909183×0.2738)

= 85.076572

User Alan Rogers
by
5.5k points
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