( Carbon ( ( has ( ( ( six protons ) and ) ( six electrons ) ) ) . ) )
(ROOT (S (NP (NNP Carbon)) (VP (VBZ has) (NP (NP (CD six) (NNS protons)) (CC and) (NP (CD six) (NNS electrons)))) (. .)))
Carbon has six protons and six electrons.
(ROOT (S (NP (NNP Carbon) (NNS atoms)) (VP (VBP have) (NP (NP (CD six) (NNS protons)) (CC and) (NP (NP (NNS electrons)) (NP (DT each))))) (. .)))