A student believed that she had discovered a new element
Chapter 3, Problem 3.1.69(choose chapter or problem)
A student believed that she had discovered a new element and named it mythium. Analysis found it contained two isotopes. The composition of the isotopes was 19.9% of atomic mass 10.013 and 80.1% of atomic mass 11.009. What is the average atomic mass, and do you think mythium was a new element?
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