( ( In ( a ( neutral atom ) ) ) ( , ( ( the ( negatively-charged electrons ) ) ( ( ( balance out ) ( ( the ( positive charge ) ) ( of ( the protons ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN In) (NP (DT a) (JJ neutral) (NN atom))) (, ,) (NP (DT the) (JJ negatively-charged) (NNS electrons)) (VP (VB balance) (PRT (RP out)) (NP (NP (DT the) (JJ positive) (NN charge)) (PP (IN of) (NP (DT the) (NNS protons))))) (. .)))
In a neutral atom, the negatively-charged electrons balance out the positive charge of the protons.
(ROOT (S (SBAR (IN Because) (S (NP (NNS atoms)) (VP (VBP have) (NP (NP (JJ equal) (NNS numbers)) (PP (IN of) (NP (NP (JJ positive) (NNS protons)) (CC and) (NP (JJ negative) (NNS electrons)))))))) (, ,) (NP (PRP they)) (VP (VBP possess) (NP (DT a) (JJ neutral) (NN charge))) (. .)))