Europium has two naturally occurring isotopes: Eu151 with a mass of 150.9198 amu and a
Chapter 0, Problem 109(choose chapter or problem)
Europium has two naturally occurring isotopes: Eu151 with a mass of 150.9198 amu and a natural abundance of 47.8%, and Eu-153. Use the atomic mass of europium to find the mass and natural abundance of Eu-153.
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