( ( While ( ( the ( intermolecular forces ) ) ( are ( ( strong enough ) ( to ( ( hold ( the molecules ) ) ( in place ) ) ) ) ) ) ) ( , ( ( molecular solids ) ( typically ( ( have ( ( lower ( melting ( and ( boiling points ) ) ) ) ( than ( ( ( ( ( metallic ( , ionic ) ) ( , ( or network ) ) ) ( atomic solids ) ) , ) ( which ( are ( ( held together ) ( by ( stronger bonds ) ) ) ) ) ) ) ) ) . ) ) ) ) )
(ROOT (S (SBAR (IN While) (S (NP (DT the) (NN intermolecular) (NNS forces)) (VP (VBP are) (ADJP (JJ strong) (RB enough) (S (VP (TO to) (VP (VB hold) (NP (DT the) (NNS molecules)) (PP (IN in) (NP (NN place)))))))))) (, ,) (NP (JJ molecular) (NNS solids)) (ADVP (RB typically)) (VP (VBP have) (NP (NP (JJR lower) (NN melting) (CC and) (JJ boiling) (NNS points)) (PP (IN than) (NP (NP (UCP (ADJP (JJ metallic) (, ,) (JJ ionic)) (, ,) (CC or) (NP (NN network))) (JJ atomic) (NNS solids)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBP are) (VP (VBN held) (ADVP (RB together)) (PP (IN by) (NP (JJR stronger) (NNS bonds))))))))))) (. .)))
While the intermolecular forces are strong enough to hold the molecules in place, molecular solids typically have lower melting and boiling points than metallic, ionic, or network atomic solids, which are held together by stronger bonds.
(ROOT (S (NP (NNS Solids)) (VP (VBP are) (VP (VBN categorized) (PP (IN by) (NP (NP (DT the) (NNS forces)) (VP (VBG holding) (NP (NP (DT the) (JJ individual) (NNS atoms)) (, ,) (NP (NNS ions)) (, ,) (CC or) (NP (NNS molecules))) (ADVP (RB together))))))) (. .)))