Rubidium Has Two Naturally Occurring Isotopes

question 17

Multiple Choice

Rubidium has two naturally occurring isotopes.The average mass of Rb is 85.4678 amu.If 72.15% of Rb is found as Rb-85 (84.9117 amu) ,what is the mass of the other isotope?

• A) 0.56 amu
• B) 85.68 amu
• C) 86.91 amu
• D) 86.02 amu
• E) 83.47 amu

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Definitions:

Market-oriented Era

A period in business philosophy where the focus is on customer needs and desires, driving product development and marketing strategies to satisfy those demands.

Creative Production Era

A period highlighting the importance of innovation and creativity in the production of goods and services, contrasting with periods focused on efficiency or standardization.

Delivering Value

The process of providing products or services that are of high value to the consumer, often exceeding their expectations relative to the cost.

Marketing Mix

Encompasses the four key elements of marketing strategy: product, price, place, and promotion used to meet marketing objectives.