Chemistry, 17.10.2020 08:01 dante766

Question 3/5 Naturally occurring Europium (Eu) consists of two isotopes with a mass of 151 and 153. Europium-151 has an abundance of 48.03% and Europium-153 has an abundance of 51.97%. What is the atomic mass of Europium?
A. 152.381 amu
B. 152.664 amu
C. 151.442 amu
D. 152.039 amu

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Question 3/5 Naturally occurring Europium (Eu) consists of two isotopes with a mass of 151 and 153....