[poll id=”25″]
ANSWER: B. 10.25
Logically you should be aware the answer is going to be a low 10 number due to the vast abundance of the 10 atom. However, to calculate it mathematically: (0.80 x 10) + (0.15 x 11) + (0.05 x 12) = 10.25
[poll id=”25″]
ANSWER: B. 10.25
Logically you should be aware the answer is going to be a low 10 number due to the vast abundance of the 10 atom. However, to calculate it mathematically: (0.80 x 10) + (0.15 x 11) + (0.05 x 12) = 10.25