( ( The electrons ) ( ( surround ( ( the ( ( nucleus and ) travel ) ) ( in orbits ) ) ) . ) )
(ROOT (S (NP (DT The) (NNS electrons)) (VP (VBP surround) (NP (NP (DT the) (NN nucleus) (CC and) (NN travel)) (PP (IN in) (NP (NNS orbits))))) (. .)))
The electrons surround the nucleus and travel in orbits.
(ROOT (S (NP (NP (DT The) (NN electron)) (VP (VBN released) (PP (IN during) (NP (JJ beta) (NN decay))))) (VP (VBZ is) (RB not) (NP (NP (DT an) (JJ orbital) (NN electron)) (PP (CC but) (NP (NP (DT an) (NN electron)) (SBAR (WHNP (WP$ whose) (NNS origin)) (S (VP (VBD was) (PP (IN in) (NP (DT the) (NN nucleus)))))))))) (. .)))