Answer
151.96
Work Step by Step
We use the equation for the atomic weight of the element:
$= .478(150.92) + 152.921(.522) = 151.96$
Not surprisingly, this matches the value on the periodic table.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.