Ask Question
18 May, 16:04

Consider an element Z that has two naturally occurring isotopes with the following percent abundances: the isotope with a mass number of 19.0 is 55.0% abundance and the isotope with a mass number of 21.0 is 45.0 % abundant. What is the atomic mass for element Z

+1
Answers (1)
  1. 18 May, 16:28
    0
    The atomic mass for element Z is 19.9

    Explanation:

    Mass number and relative abundance of the first isotope is 19 and 55% respectively.

    Mass number and relative abundance of the second isotope is 21 and 45% respectively.

    Mass number of element Z = (0.55*19) + (0.45*21) = 10.45 + 9.45 = 19.90
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Consider an element Z that has two naturally occurring isotopes with the following percent abundances: the isotope with a mass number of ...” in 📗 Chemistry if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers