We’re being asked to identify the element given the mass of its naturally occurring isotopes.
We can use the following equation:
where atomic mass = average atomic mass of the element and f.a. = fractional abundance of the isotope.
To get f.a., we simply need to divide the given percent abundance by 100.
An element has two naturally occurring isotopes. Isotope 1 has a mass of 120.9038 amu and a relative abundance of 57.4%, and isotope 2 has a mass of 122.9042 amu.
By comparison to the periodic table, identify this element.
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What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Atomic Mass concept. You can view video lessons to learn Atomic Mass. Or if you need more Atomic Mass practice, you can also practice Atomic Mass practice problems.
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Based on our data, we think this problem is relevant for Professor Montag's class at COD.