Identified the nucleus that is found in an item that has a stable valance electron configuration

Categorize them by metal, nonmetal, in periodic tableductilenon-ductilemalleableoften gain electrons easilygood conductorpoor conductorcan be liquidselements

Which scientists contributed to the determination of how cfcs in clouds in the upper atmosphere could destroy ozone molecules

Fred is studying a substance that is made out of only one element. this means that