Your answer is D. 8
16 = 2^4
72 = 2^3*3^2
So you'll choose 2^3 = 8
Answer:Noble gases:
are highly reactive.
react only with other gases.
do not appear in the periodic table.
are not very reactive with other elements.
Explanation:Noble gases:
are highly reactive.
react only with other gases.
do not appear in the periodic table.
are not very reactive with other elements.
Answer:

Explanation:
Given that,
The distance between the centers of the two oxygen atoms in an oxygen molecule is
.
We need to convert this distance in inches.
We know that,
1 cm = 0.393 inches
We can solve it as follows :

So, the distance between the centers of the two oxygen atoms is
.
Answer:
plzz can you explain in detail this Q