( ( Atoms ( of ( ( another element ) ( -LRB- ( ( usually ( a non-metal ) ) ( -RRB- ( can ( gain ( ( these electrons ) ( to ( form negatively ) ) ) ) ) ) ) ) ) ) ) ( ( charged ( ions ( called anions ) ) ) . ) )
(ROOT (S (NP (NP (NNS Atoms)) (PP (IN of) (NP (NP (DT another) (NN element)) (SBAR (S (-LRB- -LRB-) (NP (RB usually) (DT a) (NN non-metal)) (-RRB- -RRB-) (VP (MD can) (VP (VB gain) (S (NP (DT these) (NNS electrons)) (VP (TO to) (VP (VB form) (ADVP (RB negatively)))))))))))) (VP (VBD charged) (SBAR (S (NP (NNS ions)) (VP (VBD called) (NP (NNS anions)))))) (. .)))
Atoms of another element (usually a non-metal) can gain these electrons to form negatively charged ions called anions .
(ROOT (S (NP (NNS Anions)) (VP (VBP are) (VP (VBN formed) (PP (IN by) (NP (NP (NNS atoms)) (VP (VBG gaining) (NP (NNS electrons))))))) (. .)))