Chapter 4: Q. 4.40 (page 115)

Two isotopes of rubidium occur naturally, ${}_{37}^{85}R b$ and ${}_{37}^{87}R b$ . Which isotope of rubidium is more abundant?

Short Answer

Expert verified

The isotope of rubidium which is more abundant is ${}_{37}^{85}R b$ .

Step by step solution

Given information

We need to find that out of ${}_{37}^{85}R b$ and ${}_{37}^{87}R b$ which is more abundant.

Explanation

The atomic mass of an element on the periodic table is used to find the most abundant isotope. The atomic mass of rubidium is $85.468 a m u$ , as can be shown. Although no rubidium atom has that mass, it is the average mass of a rubidium sample.

When comparing the atomic masses of ${}_{37}^{85}R b$ and ${}_{37}^{87}R b$ , we can see that the atomic mass number on the periodic table is closer to that of ${}_{37}^{85}R b$ .

We can deduce that ${}_{37}^{85}R b$ is more plentiful.

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Two isotopes of rubidium occur naturally, ${}_{37}^{85}R b$ and ${}_{37}^{87}R b$ . Which isotope of rubidium is more abundant?

Short Answer

Step by step solution

Given information

Explanation

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Two isotopes of rubidium occur naturally, R3785bandR3787b. Which isotope of rubidium is more abundant?

Short Answer

Step by step solution

Given information

Explanation

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Chemistry Textbooks

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Study anywhere. Anytime. Across all devices.

Two isotopes of rubidium occur naturally, ${}_{37}^{85}R b$ and ${}_{37}^{87}R b$ . Which isotope of rubidium is more abundant?