Question

An element has three naturally occurring isotopes.
Can you please use the information below to calculate the weighted average atomic mass of the element, showing both the setup and the final answer for the calculation?

Isotope X
Atomic Mass: 1.01 u
Percent Abundance: 99.984%

Isotope Y
Atomic Mass: 2.01 u
Percent Abundance: 0.014%

Isotope Z
Atomic Mass: 3.02 u
Percent Abundance: 0.002%

Answer 1

average atomic mass=(percent of each element*atomic mass of that element)/100