( ( An ion ) ( ( results ( when ( ( a ( neutral atom ) ) ( ( ( gains or ) loses ) ( ( ( one or ) more ) electrons ) ) ) ) ) . ) )
(ROOT (S (NP (DT An) (NN ion)) (VP (VBZ results) (SBAR (WHADVP (WRB when)) (S (NP (DT a) (JJ neutral) (NN atom)) (VP (VBZ gains) (CC or) (VBZ loses) (NP (QP (CD one) (CC or) (JJR more)) (NNS electrons)))))) (. .)))
An ion results when a neutral atom gains or loses one or more electrons.
(ROOT (S (NP (NP (JJ Ionic) (NN compound) (NNS atoms)) (PP (IN of) (NP (JJ various) (NNS elements)))) (VP (VBP gain) (CC or) (VBP lose) (NP (NNS electrons) (S (VP (TO to) (VP (VB produce) (NP (NNS ions))))))) (. .)))