Question #6465008Single Choice

Chemistry

Question

An element has three isotopes with the following properties: Isotope 1: mass 12.0 amu, natural abundance 20%; Isotope 2: mass 14.0 amu, natural abundance 30%; Isotope 3: mass 16.0 amu, natural abundance 50%. What is the average atomic mass of the element?

Options

A
13.6 amu
B
14.0 amu
C
14.6 amu
D
14.8 amu

Answer & Analysis