I belive it could be 6.5 but I could be wrong
I believe it is very likely to bond with another atom because it only has 7 valence electrons in its outer shell. To complete the outer shell, to bond with another atom, it needs to have eight, or a multiple of 8 electrons in the outermost shell or valence shell. Hope this helps!
<span>In my opinion, I myself believe that there are only two supernovae. The first is the white dwarf. It makes sense because if something is too big for its size, it will "explode". Just like a basketball with too much air. Massive star supernovae is like something has reached it's full potential and cannot get any bigger or better.</span>