Question #6464995Single Choice

Chemistry

Question

An element has two isotopes: Isotope A with a mass of 10.0 amu and a natural abundance of 40%, and Isotope B with a mass of 12.0 amu and a natural abundance of 60%. What is the average atomic mass of the element?

Options

A
10.8 amu
B
11.0 amu
C
11.2 amu
D
11.4 amu

Answer & Analysis