Atomic Structure Question
View this question.
Add this question to a group or test by clicking the appropriate button below.
Note: This question is included in a group. The contents of the question may require the group's common instructions or reference text to be meaningful. If so, you may want to add the entire group of questions to your test. To do this, click on the group instructions in the blue box below. If you choose to add only this question, common instructions or reference text will not be added to your test.
An element has an atomic number of 26 and has isotopes with mass numbers of 56 and 54. Its average atomic mass is 55.845 amu. Based on the average atomic mass, which of the following isotopes is most abundant?
- The isotope with a mass number of 54
- The isotope with a mass number of 56
- Both isotopes have equal abundances
- An isotope with a mass number other than 56 or 54