Practice problem
Image source: By Armtuk CC BY 2.0, via [Wikimedia Commons]
A negative ion, written as Element−Element^{-}Element−, designates an atom with one extra electron that it wouldn't have as a neutral atom. Which ion is most likely to share properties with the Noble Gases?
O−O^{-}O−
Cl−Cl^{-}Cl−
Xe−Xe^{-}Xe−
Na−Na^{-}Na−
Type a concept, like “slope” or “photosynthesis”.
