<span>261 million kilometers</span>
The answer is D. To put it simply, all atom wished to become stable. The only way for that is to obtain an octet structure where the outermost shell would have 8 electrons, thus being full.
I think 14 are produced because if you go up by that you get it
Uranus is said to be made of fluids. Its atmosphere is its surface
The two notations that represent isotopes of the same element is the one that represented in option 1
The lower number is the number of protons while the upper number is the atomic weight
hope this helps
