An atom is most stable when it has eight electrons in its outermost energy level.
Because, at lower elevation, everything is tightly packed, and theres more air. As for at higher elevation (like for example at the top of mount everest) There is less air... The higher the elevation, the less air.
<em>~Hope this helped! :)</em>
Jdusjfbehsbdbegsuxbshsudnd
