( ( ( ( Electron density ) and ) ( ( the ( merging ( energy ( level relationship ) ) ) ) ( for ( hydrogen atom ) ) ) ) ( ( is ( given by ) ) ; ) )
(ROOT (S (NP (NP (NNP Electron) (NNP density)) (CC and) (NP (NP (DT the) (JJ merging) (NN energy) (NN level) (NN relationship)) (PP (IN for) (NP (NN hydrogen) (NN atom))))) (VP (VBZ is) (VP (VBN given) (PP (IN by)))) (: ;)))
Electron density and the merging energy level relationship for hydrogen atom is given by;
(ROOT (S (NP (DT The) (NN spectrum)) (VP (VBZ is) (VP (VBN made) (PRT (RP up)) (PP (IN of) (NP (NP (JJ discrete) (NNS lines)) (VP (VBG representing) (NP (NP (NNS transitions)) (PP (IN of) (NP (NP (DT the) (NN hydrogen) (NN electron)) (PP (IN between) (NP (JJ specific) (NN energy) (NNS levels)))))) (PP (IN within) (NP (DT the) (NN atom)))))))) (. .)))