Calculating the Average Atomic Mass of Rubidium
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Questions and Answers

What is the average atomic mass of rubidium?

  • 85.0 amu
  • 86.4 amu (correct)
  • 88.7 amu
  • 87.4 amu

Which isotope of rubidium is more abundant?

  • 86Rb
  • 87Rb
  • 84Rb
  • 85Rb (correct)

What is the atomic number of rubidium?

  • 51
  • 46
  • 41 (correct)
  • 36

What type of metal is rubidium?

<p>Soft and silvery-white (C)</p> Signup and view all the answers

What is the average atomic mass of uranium?

<p>238.0289 (A)</p> Signup and view all the answers

Which of the following isotopes of uranium is the most abundant?

<p>238U (D)</p> Signup and view all the answers

What is the abundance of 235U compared to 234U?

<p>71 times more abundant (C)</p> Signup and view all the answers

If the abundance of 238U is increased by 1%, what would be the impact on the average atomic mass of uranium?

<p>It would increase slightly (B)</p> Signup and view all the answers

What is the average atomic mass of uranium?

<p>238.05 amu (B)</p> Signup and view all the answers

Which isotope of uranium is the most abundant?

<p>238U (D)</p> Signup and view all the answers

What is the atomic number of uranium?

<p>92 (C)</p> Signup and view all the answers

What type of metal is uranium?

<p>Actinide metal (A)</p> Signup and view all the answers

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