( It ( ( ( ( ( ( ( also ( has ( a ( high ( electron affinity ) ) ) ) ) , ) ( ( second only ) ( to chlorine ) ) ) , ) and ) ( tends ( to ( capture ( an ( electron ( to ( ( become isoelectronic ) ( with ( the ( noble ( gas neon ) ) ) ) ) ) ) ) ) ) ) ) ; ) )
(ROOT (S (NP (PRP It)) (VP (VP (ADVP (RB also)) (VBZ has) (NP (DT a) (JJ high) (NN electron) (NN affinity))) (, ,) (VP (ADJP (RB second) (JJ only)) (PP (TO to) (NP (NN chlorine)))) (, ,) (CC and) (VP (VBZ tends) (S (VP (TO to) (VP (VB capture) (NP (DT an) (NN electron) (S (VP (TO to) (VP (VB become) (ADJP (JJ isoelectronic)) (PP (IN with) (NP (DT the) (JJ noble) (NN gas) (NN neon)))))))))))) (: ;)))
It also has a high electron affinity, second only to chlorine, and tends to capture an electron to become isoelectronic with the noble gas neon;
(ROOT (S (NP (NNP Neon)) (VP (VBZ is) (NP (NP (DT an) (NN example)) (PP (IN of) (NP (JJ noble) (NN gas))))) (. .)))