( ( ( ( ( ion atom ) , ) or ) ( group ( of atoms ) ) ) ( , ( ( having ( a ( net ( electric charge ) ) ) ) ( , ( ( acquired ( by ( ( ( gaining or ) losing ) ( ( ( one or ) more ) ( ( electrons or ) protons ) ) ) ) ) . ) ) ) ) )
(ROOT (S (NP (NP (NN ion) (NN atom)) (, ,) (CC or) (NP (NP (NN group)) (PP (IN of) (NP (NNS atoms))))) (, ,) (S (VP (VBG having) (NP (DT a) (JJ net) (JJ electric) (NN charge)))) (, ,) (VP (VBD acquired) (PP (IN by) (S (VP (VBG gaining) (CC or) (VBG losing) (NP (QP (CD one) (CC or) (JJR more)) (NNS electrons) (CC or) (NNS protons)))))) (. .)))
ion atom, or group of atoms, having a net electric charge, acquired by gaining or losing one or more electrons or protons.
(ROOT (S (SBAR (WHADVP (WRB When)) (S (NP (DT an) (NN atom)) (VP (VBZ gains) (CC or) (VBZ loses) (NP (DT an) (NN electron))))) (NP (PRP it)) (VP (VBZ becames) (NP (DT a) (PRN (-LRB- -LRB-) (NP (NN n)) (-RRB- -RRB-)) (NN ion))) (. .)))