( ( ( The loss ) ( of ( an electron ) ) ) ( ( creates ( a ( positive ( metallic ion ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN loss)) (PP (IN of) (NP (DT an) (NN electron)))) (VP (VBZ creates) (NP (DT a) (JJ positive) (JJ metallic) (NN ion))) (. .)))
The loss of an electron creates a positive metallic ion.
(ROOT (S (NP (DT A) (JJ metallic) (NN bond)) (VP (VBZ is) (NP (NP (DT the) (NN force)) (PP (IN of) (NP (NP (NN attraction)) (PP (IN between) (NP (NP (DT a) (JJ positive) (NN metal) (NN ion)) (CC and) (NP (JJ valence) (NNS electrons)))))))) (. .)))