( ( Types ( of ( ( ( ( ( Radioactive Decay ) ( When ( ( ( ( unstable ( nuclei decay ) ) , ) ( the reactions ) ) ( generally ( involve ( ( the emission ) ( of ( a particle ) ) ) ) ) ) ) ) and ) or ) energy ) ) ) . )
(ROOT (NP (NP (NNS Types)) (PP (IN of) (NP (NP (NP (NNP Radioactive) (NNP Decay)) (SBAR (WHADVP (WRB When)) (S (NP (NP (JJ unstable) (NN nuclei) (NN decay)) (, ,) (NP (DT the) (NNS reactions))) (ADVP (RB generally)) (VP (VBP involve) (NP (NP (DT the) (NN emission)) (PP (IN of) (NP (DT a) (NN particle)))))))) (CC and) (CC or) (NP (NN energy)))) (. .)))
Types of Radioactive Decay When unstable nuclei decay, the reactions generally involve the emission of a particle and or energy.
(ROOT (S (NP (JJ Radioactive) (NN decay)) (VP (MD can) (VP (VB give) (PRT (RP off)) (NP (NN energy) (CC and) (NNS particles)))) (. .)))