Which of the following would not have the same number of valence electrons as the others?boronaluminumgalliumselenium
your thinking on the right track, but not all the way through itThe problem with insulation that isn't breathable is that your body sweats as you get warmer, and that moisture needs to escapeIf it doesn't it will eventually cool and you will be damp and coldInsulation works by trapping warm air against your body, so as long as it allows moisture to evaporate but it keeps a warm layer of air against your body, you will be fine.
why does cotton candy look like insulation?
selenium is in a different column, so different number of valence electrons
