Calculate the average atomic mass for the following element: *
1
16amu
99.726%
2
17amu
3
.038%
18amu
.200%
Average atomic mass = (1)(99.726%) + (2)(0.038%) + (3)(0.200%)
= 0.99726 + 0.00076 + 0.00060
= 0.99862
Therefore, the average atomic mass for this element is approximately 0.99862 amu.