Answer:
options?
Explanation:
i mean scientists fits so if any of the options have a scientist thats it
<span>A. the dog ate everyone of his play toys</span>
20.181 u
The average atomic mass of Ne is the <em>weighted average</em> of the atomic masses of its isotopes.
We multiply the atomic mass of each isotope by a number representing its relative importance (i.e., its % abundance).
Thus,
Avg. at. mass
= (0.904 83× 19.992 u) + (0.002 71 × 20.994) + (0.092 53× 21.991 u)
= 18.0894 u + 0.0569 u + 2.0348 u = 20.181 u
Uranium is in the "f" block, because it's external electron configuration is
