( ( ( ( ( ( The ( ( protons and ) neutrons ) ) ( exists ( in ( ( ( the nucleus ) , ) ( which ( is ( ( the ( central core ) ) ( of ( the atom ) ) ) ) ) ) ) ) ) , ) and ) ( ( the electrons ) ( travels ( in ( ( the orbitals ) ( about ( ( the nucleus ) ( of ( the atom ) ) ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (DT The) (NNS protons) (CC and) (NNS neutrons)) (VP (VBZ exists) (PP (IN in) (NP (NP (DT the) (NN nucleus)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBZ is) (NP (NP (DT the) (JJ central) (NN core)) (PP (IN of) (NP (DT the) (NN atom))))))))))) (, ,) (CC and) (S (NP (DT the) (NNS electrons)) (VP (VBZ travels) (PP (IN in) (NP (NP (DT the) (NNS orbitals)) (PP (IN about) (NP (NP (DT the) (NN nucleus)) (PP (IN of) (NP (DT the) (NN atom))))))))) (. .)))
The protons and neutrons exists in the nucleus, which is the central core of the atom, and the electrons travels in the orbitals about the nucleus of the atom.
(ROOT (S (NP (NNS Protons) (CC and) (NNS neutrons)) (VP (VBP are) (VP (VBN located) (PP (IN in) (NP (DT the) (JJ central) (NN nucleus))))) (. .)))