( ( ( 10 -RRB- ) Ions ) ( ( are ( atoms ( that ( have ( ( ( gained or ) lost ) electrons ) ) ) ) ) . ) )
(ROOT (S (NP (QP (CD 10) (CD -RRB-)) (NNPS Ions)) (VP (VBP are) (NP (NP (NNS atoms)) (SBAR (WHNP (WDT that)) (S (VP (VBP have) (VP (VBN gained) (CC or) (VBN lost) (NP (NNS electrons)))))))) (. .)))
10) Ions are atoms that have gained or lost electrons.
(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))) (. .)))