A sample of Element "X" is found to contain three isotopes. The first isotope has a mass of 1 amu and a natural abundance of 99%. The second isotope has a mass of 2 amu and an abundance of 0.80%. The third isotope has a mass of 3 amu and an abundance of 0.20%. Calculate the average atomic mass of element "X": a
1.099 amu
b
1.012 amu
c
1.118 amu
d
1.904 amu
e
0.990 amu
f
1.304 amu
g
0.9874 amu
h
1.000 amu