Answer:
I believe it is B,fluorine to complete the octet rule
Explanation:
Are you referring to DNA?
I'm not completely sure but I think it is 27.4572. Hope I helped a little.
<span>That the mass is far lesser
and distributed mistakenly, as compared to what the orbits of stars declare it
should be. Stars orbit more rapidly than the mass would predict, particularly
out toward the galactic edge. This means that there is more mass than has been
measured, and that it is spread out in a huge cloud around the galaxy. This is
one of the reasons why scientists believe that dark matter exists.</span>
