( ( ( Includes ( ( ( ( ( the characteristics ) ( of ( protons ( , ( neutrons ( , ( and electrons ) ) ) ) ) ) ) , ) and ) ( ( the number ) ( of ( ( subatomic particles ) ( in ( various elements ) ) ) ) ) ) ) ( -LRB- ( ( including ( ( isotopes and ) ions ) ) -RRB- ) ) ) . )
(ROOT (S (VP (VBZ Includes) (NP (NP (NP (DT the) (NNS characteristics)) (PP (IN of) (NP (NNS protons) (, ,) (NNS neutrons) (, ,) (CC and) (NNS electrons)))) (, ,) (CC and) (NP (NP (DT the) (NN number)) (PP (IN of) (NP (NP (JJ subatomic) (NNS particles)) (PP (IN in) (NP (JJ various) (NNS elements))))))) (PRN (-LRB- -LRB-) (PP (VBG including) (NP (NNS isotopes) (CC and) (NNS ions))) (-RRB- -RRB-))) (. .)))
Includes the characteristics of protons, neutrons, and electrons, and the number of subatomic particles in various elements (including isotopes and ions).
(ROOT (S (NP (NP (DT The) (NN number)) (PP (IN of) (NP (NNS neutrons)))) (VP (MD can) (VP (VB vary) (PP (IN between) (NP (NP (NNS atoms)) (PP (IN of) (NP (DT the) (JJ same) (NN element))))))) (. .)))